layout/style/nsLayoutStylesheetCache.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef nsLayoutStylesheetCache_h__
   8 #define nsLayoutStylesheetCache_h__
   9
  10 #include "nsIMemoryReporter.h"
  11 #include "nsIObserver.h"
  12 #include "nsAutoPtr.h"
  13 #include "mozilla/Attributes.h"
  14 #include "mozilla/MemoryReporting.h"
  15 #include "mozilla/StaticPtr.h"
  16
  17 class nsIFile;
  18 class nsIURI;
  19
  20 namespace mozilla {
  21 class CSSStyleSheet;
  22 namespace css {
  23 class Loader;
  24 }
  25 }
  26
  27 class nsLayoutStylesheetCache MOZ_FINAL
  28  : public nsIObserver
  29  , public nsIMemoryReporter
  30 {
  31   NS_DECL_ISUPPORTS
  32   NS_DECL_NSIOBSERVER
  33   NS_DECL_NSIMEMORYREPORTER
  34
  35   static mozilla::CSSStyleSheet* ScrollbarsSheet();
  36   static mozilla::CSSStyleSheet* FormsSheet();
  37   // This function is expected to return nullptr when the dom.forms.number
  38   // pref is disabled.
  39   static mozilla::CSSStyleSheet* NumberControlSheet();
  40   static mozilla::CSSStyleSheet* UserContentSheet();
  41   static mozilla::CSSStyleSheet* UserChromeSheet();
  42   static mozilla::CSSStyleSheet* UASheet();
  43   static mozilla::CSSStyleSheet* HTMLSheet();
  44   static mozilla::CSSStyleSheet* MinimalXULSheet();
  45   static mozilla::CSSStyleSheet* XULSheet();
  46   static mozilla::CSSStyleSheet* QuirkSheet();
  47   static mozilla::CSSStyleSheet* FullScreenOverrideSheet();
  48   static mozilla::CSSStyleSheet* SVGSheet();
  49   static mozilla::CSSStyleSheet* MathMLSheet();
  50   static mozilla::CSSStyleSheet* CounterStylesSheet();
  51
  52   static void Shutdown();
  53
  54   size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
  55
  56 private:
  57   nsLayoutStylesheetCache();
  58   ~nsLayoutStylesheetCache();
  59
  60   static void EnsureGlobal();
  61   void InitFromProfile();
  62   void InitMemoryReporter();
  63   static void LoadSheetURL(const char* aURL,
  64                            nsRefPtr<mozilla::CSSStyleSheet>& aSheet,
  65                            bool aEnableUnsafeRules);
  66   static void LoadSheetFile(nsIFile* aFile,
  67                             nsRefPtr<mozilla::CSSStyleSheet>& aSheet);
  68   static void LoadSheet(nsIURI* aURI, nsRefPtr<mozilla::CSSStyleSheet>& aSheet,
  69                         bool aEnableUnsafeRules);
  70   static void InvalidateSheet(nsRefPtr<mozilla::CSSStyleSheet>& aSheet);
  71   static void DependentPrefChanged(const char* aPref, void* aData);
  72
  73   static mozilla::StaticRefPtr<nsLayoutStylesheetCache> gStyleCache;
  74   static mozilla::css::Loader* gCSSLoader;
  75   nsRefPtr<mozilla::CSSStyleSheet> mCounterStylesSheet;
  76   nsRefPtr<mozilla::CSSStyleSheet> mFormsSheet;
  77   nsRefPtr<mozilla::CSSStyleSheet> mFullScreenOverrideSheet;
  78   nsRefPtr<mozilla::CSSStyleSheet> mHTMLSheet;
  79   nsRefPtr<mozilla::CSSStyleSheet> mMathMLSheet;
  80   nsRefPtr<mozilla::CSSStyleSheet> mMinimalXULSheet;
  81   nsRefPtr<mozilla::CSSStyleSheet> mNumberControlSheet;
  82   nsRefPtr<mozilla::CSSStyleSheet> mQuirkSheet;
  83   nsRefPtr<mozilla::CSSStyleSheet> mSVGSheet;
  84   nsRefPtr<mozilla::CSSStyleSheet> mScrollbarsSheet;
  85   nsRefPtr<mozilla::CSSStyleSheet> mUASheet;
  86   nsRefPtr<mozilla::CSSStyleSheet> mUserChromeSheet;
  87   nsRefPtr<mozilla::CSSStyleSheet> mUserContentSheet;
  88   nsRefPtr<mozilla::CSSStyleSheet> mXULSheet;
  89 };
  90
  91 #endif