gecko-dev/layout/style/nsLayoutStylesheetCache.h

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/* -*- 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 "nsAutoPtr.h"
#include "mozilla/Attributes.h"
#include "mozilla/MemoryReporting.h"
#include "mozilla/StaticPtr.h"
#include "mozilla/StyleBackendType.h"
#include "mozilla/css/Loader.h"
class nsIFile;
class nsIURI;
namespace mozilla {
class CSSStyleSheet;
} // namespace mozilla
class nsLayoutStylesheetCache final
: public nsIObserver
, public nsIMemoryReporter
{
NS_DECL_ISUPPORTS
NS_DECL_NSIOBSERVER
NS_DECL_NSIMEMORYREPORTER
/**
* Returns the nsLayoutStylesheetCache for the given style backend type.
* Callers should pass in a value for aType that matches the style system
* backend type for the style set in use. (A process may call For
* and obtain nsLayoutStylesheetCache objects for both backend types,
* and a particular UA style sheet might be cached in both, one or neither
* nsLayoutStylesheetCache.)
*/
static nsLayoutStylesheetCache* For(mozilla::StyleBackendType aType);
mozilla::StyleSheetHandle ScrollbarsSheet();
mozilla::StyleSheetHandle FormsSheet();
// This function is expected to return nullptr when the dom.forms.number
// pref is disabled.
mozilla::StyleSheetHandle NumberControlSheet();
mozilla::StyleSheetHandle UserContentSheet();
mozilla::StyleSheetHandle UserChromeSheet();
mozilla::StyleSheetHandle UASheet();
mozilla::StyleSheetHandle HTMLSheet();
mozilla::StyleSheetHandle MinimalXULSheet();
mozilla::StyleSheetHandle XULSheet();
mozilla::StyleSheetHandle QuirkSheet();
mozilla::StyleSheetHandle SVGSheet();
mozilla::StyleSheetHandle MathMLSheet();
mozilla::StyleSheetHandle CounterStylesSheet();
mozilla::StyleSheetHandle NoScriptSheet();
mozilla::StyleSheetHandle NoFramesSheet();
mozilla::StyleSheetHandle ChromePreferenceSheet(nsPresContext* aPresContext);
mozilla::StyleSheetHandle ContentPreferenceSheet(nsPresContext* aPresContext);
mozilla::StyleSheetHandle ContentEditableSheet();
mozilla::StyleSheetHandle DesignModeSheet();
static void InvalidatePreferenceSheets();
static void Shutdown();
size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
private:
explicit nsLayoutStylesheetCache(mozilla::StyleBackendType aImpl);
~nsLayoutStylesheetCache();
void InitFromProfile();
void InitMemoryReporter();
void LoadSheetURL(const char* aURL,
mozilla::StyleSheetHandle::RefPtr& aSheet,
mozilla::css::SheetParsingMode aParsingMode);
void LoadSheetFile(nsIFile* aFile,
mozilla::StyleSheetHandle::RefPtr& aSheet,
mozilla::css::SheetParsingMode aParsingMode);
void LoadSheet(nsIURI* aURI, mozilla::StyleSheetHandle::RefPtr& aSheet,
mozilla::css::SheetParsingMode aParsingMode);
static void InvalidateSheet(mozilla::StyleSheetHandle::RefPtr* aGeckoSheet,
mozilla::StyleSheetHandle::RefPtr* aServoSheet);
static void DependentPrefChanged(const char* aPref, void* aData);
void BuildPreferenceSheet(mozilla::StyleSheetHandle::RefPtr& aSheet,
nsPresContext* aPresContext);
static mozilla::StaticRefPtr<nsLayoutStylesheetCache> gStyleCache_Gecko;
static mozilla::StaticRefPtr<nsLayoutStylesheetCache> gStyleCache_Servo;
static mozilla::StaticRefPtr<mozilla::css::Loader> gCSSLoader_Gecko;
static mozilla::StaticRefPtr<mozilla::css::Loader> gCSSLoader_Servo;
mozilla::StyleBackendType mBackendType;
mozilla::StyleSheetHandle::RefPtr mChromePreferenceSheet;
mozilla::StyleSheetHandle::RefPtr mContentEditableSheet;
mozilla::StyleSheetHandle::RefPtr mContentPreferenceSheet;
mozilla::StyleSheetHandle::RefPtr mCounterStylesSheet;
mozilla::StyleSheetHandle::RefPtr mDesignModeSheet;
mozilla::StyleSheetHandle::RefPtr mFormsSheet;
mozilla::StyleSheetHandle::RefPtr mHTMLSheet;
mozilla::StyleSheetHandle::RefPtr mMathMLSheet;
mozilla::StyleSheetHandle::RefPtr mMinimalXULSheet;
mozilla::StyleSheetHandle::RefPtr mNoFramesSheet;
mozilla::StyleSheetHandle::RefPtr mNoScriptSheet;
mozilla::StyleSheetHandle::RefPtr mNumberControlSheet;
mozilla::StyleSheetHandle::RefPtr mQuirkSheet;
mozilla::StyleSheetHandle::RefPtr mSVGSheet;
mozilla::StyleSheetHandle::RefPtr mScrollbarsSheet;
mozilla::StyleSheetHandle::RefPtr mUASheet;
mozilla::StyleSheetHandle::RefPtr mUserChromeSheet;
mozilla::StyleSheetHandle::RefPtr mUserContentSheet;
mozilla::StyleSheetHandle::RefPtr mXULSheet;
};
#endif