DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Implementation

Mercurial (409f3966645a)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118
/* -*- 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 nsLayoutStylesheetCache_h__
#define nsLayoutStylesheetCache_h__

#include "nsIMemoryReporter.h"
#include "nsIObserver.h"
#include "mozilla/Attributes.h"
#include "mozilla/MemoryReporting.h"
#include "mozilla/StaticPtr.h"
#include "mozilla/css/Loader.h"

class nsIFile;
class nsIURI;

namespace mozilla {
class CSSStyleSheet;
} // namespace mozilla

namespace mozilla {
namespace css {

// Enum defining how error should be handled.
enum FailureAction {
  eCrash = 0,
  eLogToConsole
};

}
}

class nsLayoutStylesheetCache final
 : public nsIObserver
 , public nsIMemoryReporter
{
  NS_DECL_ISUPPORTS
  NS_DECL_NSIOBSERVER
  NS_DECL_NSIMEMORYREPORTER

  static nsLayoutStylesheetCache* Singleton();

  mozilla::StyleSheet* ScrollbarsSheet();
  mozilla::StyleSheet* FormsSheet();
  mozilla::StyleSheet* UserContentSheet();
  mozilla::StyleSheet* UserChromeSheet();
  mozilla::StyleSheet* UASheet();
  mozilla::StyleSheet* HTMLSheet();
  mozilla::StyleSheet* MinimalXULSheet();
  mozilla::StyleSheet* XULSheet();
  mozilla::StyleSheet* XULComponentsSheet();
  mozilla::StyleSheet* QuirkSheet();
  mozilla::StyleSheet* SVGSheet();
  mozilla::StyleSheet* MathMLSheet();
  mozilla::StyleSheet* CounterStylesSheet();
  mozilla::StyleSheet* NoScriptSheet();
  mozilla::StyleSheet* NoFramesSheet();
  mozilla::StyleSheet* ChromePreferenceSheet(nsPresContext* aPresContext);
  mozilla::StyleSheet* ContentPreferenceSheet(nsPresContext* aPresContext);
  mozilla::StyleSheet* ContentEditableSheet();
  mozilla::StyleSheet* DesignModeSheet();

  static void InvalidatePreferenceSheets();

  static void Shutdown();

  static void SetUserContentCSSURL(nsIURI* aURI);

  size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;

private:
  nsLayoutStylesheetCache();
  ~nsLayoutStylesheetCache();

  void InitFromProfile();
  void InitMemoryReporter();
  void LoadSheetURL(const char* aURL,
                    RefPtr<mozilla::StyleSheet>* aSheet,
                    mozilla::css::SheetParsingMode aParsingMode,
                    mozilla::css::FailureAction aFailureAction);
  void LoadSheetFile(nsIFile* aFile,
                     RefPtr<mozilla::StyleSheet>* aSheet,
                     mozilla::css::SheetParsingMode aParsingMode,
                     mozilla::css::FailureAction aFailureAction);
  void LoadSheet(nsIURI* aURI, RefPtr<mozilla::StyleSheet>* aSheet,
                 mozilla::css::SheetParsingMode aParsingMode,
                 mozilla::css::FailureAction aFailureAction);
  void BuildPreferenceSheet(RefPtr<mozilla::StyleSheet>* aSheet,
                            nsPresContext* aPresContext);

  static mozilla::StaticRefPtr<nsLayoutStylesheetCache> gStyleCache;
  static mozilla::StaticRefPtr<mozilla::css::Loader> gCSSLoader;
  static mozilla::StaticRefPtr<nsIURI> gUserContentSheetURL;
  RefPtr<mozilla::StyleSheet> mChromePreferenceSheet;
  RefPtr<mozilla::StyleSheet> mContentEditableSheet;
  RefPtr<mozilla::StyleSheet> mContentPreferenceSheet;
  RefPtr<mozilla::StyleSheet> mCounterStylesSheet;
  RefPtr<mozilla::StyleSheet> mDesignModeSheet;
  RefPtr<mozilla::StyleSheet> mFormsSheet;
  RefPtr<mozilla::StyleSheet> mHTMLSheet;
  RefPtr<mozilla::StyleSheet> mMathMLSheet;
  RefPtr<mozilla::StyleSheet> mMinimalXULSheet;
  RefPtr<mozilla::StyleSheet> mNoFramesSheet;
  RefPtr<mozilla::StyleSheet> mNoScriptSheet;
  RefPtr<mozilla::StyleSheet> mQuirkSheet;
  RefPtr<mozilla::StyleSheet> mSVGSheet;
  RefPtr<mozilla::StyleSheet> mScrollbarsSheet;
  RefPtr<mozilla::StyleSheet> mUASheet;
  RefPtr<mozilla::StyleSheet> mUserChromeSheet;
  RefPtr<mozilla::StyleSheet> mUserContentSheet;
  RefPtr<mozilla::StyleSheet> mXULSheet;
  RefPtr<mozilla::StyleSheet> mXULComponentsSheet;
};

#endif