зеркало из https://github.com/mozilla/gecko-dev.git
136 строки
5.0 KiB
C++
136 строки
5.0 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsLayoutStylesheetCache_h__
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#define nsLayoutStylesheetCache_h__
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#include "nsIMemoryReporter.h"
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#include "nsIObserver.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/MemoryReporting.h"
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#include "mozilla/StaticPtr.h"
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#include "mozilla/StyleBackendType.h"
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#include "mozilla/css/Loader.h"
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class nsIFile;
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class nsIURI;
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namespace mozilla {
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class CSSStyleSheet;
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} // namespace mozilla
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namespace mozilla {
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namespace css {
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// Enum defining how error should be handled.
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enum FailureAction {
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eCrash = 0,
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eLogToConsole
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};
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}
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}
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class nsLayoutStylesheetCache final
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: public nsIObserver
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, public nsIMemoryReporter
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{
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NS_DECL_ISUPPORTS
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NS_DECL_NSIOBSERVER
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NS_DECL_NSIMEMORYREPORTER
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/**
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* Returns the nsLayoutStylesheetCache for the given style backend type.
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* Callers should pass in a value for aType that matches the style system
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* backend type for the style set in use. (A process may call For
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* and obtain nsLayoutStylesheetCache objects for both backend types,
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* and a particular UA style sheet might be cached in both, one or neither
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* nsLayoutStylesheetCache.)
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*/
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static nsLayoutStylesheetCache* For(mozilla::StyleBackendType aType);
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mozilla::StyleSheet* ScrollbarsSheet();
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mozilla::StyleSheet* FormsSheet();
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// This function is expected to return nullptr when the dom.forms.number
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// pref is disabled.
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mozilla::StyleSheet* NumberControlSheet();
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mozilla::StyleSheet* UserContentSheet();
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mozilla::StyleSheet* UserChromeSheet();
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mozilla::StyleSheet* UASheet();
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mozilla::StyleSheet* HTMLSheet();
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mozilla::StyleSheet* MinimalXULSheet();
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mozilla::StyleSheet* XULSheet();
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mozilla::StyleSheet* QuirkSheet();
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mozilla::StyleSheet* SVGSheet();
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mozilla::StyleSheet* MathMLSheet();
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mozilla::StyleSheet* CounterStylesSheet();
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mozilla::StyleSheet* NoScriptSheet();
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mozilla::StyleSheet* NoFramesSheet();
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mozilla::StyleSheet* ChromePreferenceSheet(nsPresContext* aPresContext);
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mozilla::StyleSheet* ContentPreferenceSheet(nsPresContext* aPresContext);
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mozilla::StyleSheet* ContentEditableSheet();
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mozilla::StyleSheet* DesignModeSheet();
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static void InvalidatePreferenceSheets();
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static void Shutdown();
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static void SetUserContentCSSURL(nsIURI* aURI);
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size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
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private:
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explicit nsLayoutStylesheetCache(mozilla::StyleBackendType aImpl);
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~nsLayoutStylesheetCache();
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void InitFromProfile();
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void InitMemoryReporter();
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void LoadSheetURL(const char* aURL,
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RefPtr<mozilla::StyleSheet>* aSheet,
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mozilla::css::SheetParsingMode aParsingMode,
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mozilla::css::FailureAction aFailureAction);
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void LoadSheetFile(nsIFile* aFile,
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RefPtr<mozilla::StyleSheet>* aSheet,
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mozilla::css::SheetParsingMode aParsingMode,
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mozilla::css::FailureAction aFailureAction);
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void LoadSheet(nsIURI* aURI, RefPtr<mozilla::StyleSheet>* aSheet,
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mozilla::css::SheetParsingMode aParsingMode,
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mozilla::css::FailureAction aFailureAction);
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static void InvalidateSheet(RefPtr<mozilla::StyleSheet>* aGeckoSheet,
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RefPtr<mozilla::StyleSheet>* aServoSheet);
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static void DependentPrefChanged(const char* aPref, void* aData);
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void BuildPreferenceSheet(RefPtr<mozilla::StyleSheet>* aSheet,
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nsPresContext* aPresContext);
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static mozilla::StaticRefPtr<nsLayoutStylesheetCache> gStyleCache_Gecko;
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static mozilla::StaticRefPtr<nsLayoutStylesheetCache> gStyleCache_Servo;
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static mozilla::StaticRefPtr<mozilla::css::Loader> gCSSLoader_Gecko;
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static mozilla::StaticRefPtr<mozilla::css::Loader> gCSSLoader_Servo;
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static mozilla::StaticRefPtr<nsIURI> gUserContentSheetURL;
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mozilla::StyleBackendType mBackendType;
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RefPtr<mozilla::StyleSheet> mChromePreferenceSheet;
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RefPtr<mozilla::StyleSheet> mContentEditableSheet;
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RefPtr<mozilla::StyleSheet> mContentPreferenceSheet;
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RefPtr<mozilla::StyleSheet> mCounterStylesSheet;
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RefPtr<mozilla::StyleSheet> mDesignModeSheet;
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RefPtr<mozilla::StyleSheet> mFormsSheet;
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RefPtr<mozilla::StyleSheet> mHTMLSheet;
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RefPtr<mozilla::StyleSheet> mMathMLSheet;
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RefPtr<mozilla::StyleSheet> mMinimalXULSheet;
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RefPtr<mozilla::StyleSheet> mNoFramesSheet;
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RefPtr<mozilla::StyleSheet> mNoScriptSheet;
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RefPtr<mozilla::StyleSheet> mNumberControlSheet;
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RefPtr<mozilla::StyleSheet> mQuirkSheet;
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RefPtr<mozilla::StyleSheet> mSVGSheet;
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RefPtr<mozilla::StyleSheet> mScrollbarsSheet;
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RefPtr<mozilla::StyleSheet> mUASheet;
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RefPtr<mozilla::StyleSheet> mUserChromeSheet;
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RefPtr<mozilla::StyleSheet> mUserContentSheet;
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RefPtr<mozilla::StyleSheet> mXULSheet;
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};
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#endif
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