1 files changed, 135 insertions, 0 deletions
diff --git a/layout/style/nsLayoutStylesheetCache.h b/layout/style/nsLayoutStylesheetCache.h
new file mode 100644
index 000000000..48391cc7a
--- /dev/null
+++ b/layout/style/nsLayoutStylesheetCache.h
@@ -0,0 +1,135 @@
+/* -*- 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/StyleBackendType.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
+
+  /**
+   * 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::StyleSheet* ScrollbarsSheet();
+  mozilla::StyleSheet* FormsSheet();
+  // This function is expected to return nullptr when the dom.forms.number
+  // pref is disabled.
+  mozilla::StyleSheet* NumberControlSheet();
+  mozilla::StyleSheet* UserContentSheet();
+  mozilla::StyleSheet* UserChromeSheet();
+  mozilla::StyleSheet* UASheet();
+  mozilla::StyleSheet* HTMLSheet();
+  mozilla::StyleSheet* MinimalXULSheet();
+  mozilla::StyleSheet* XULSheet();
+  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:
+  explicit nsLayoutStylesheetCache(mozilla::StyleBackendType aImpl);
+  ~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);
+  static void InvalidateSheet(RefPtr<mozilla::StyleSheet>* aGeckoSheet,
+                              RefPtr<mozilla::StyleSheet>* aServoSheet);
+  static void DependentPrefChanged(const char* aPref, void* aData);
+  void BuildPreferenceSheet(RefPtr<mozilla::StyleSheet>* 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;
+  static mozilla::StaticRefPtr<nsIURI> gUserContentSheetURL;
+  mozilla::StyleBackendType mBackendType;
+  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> mNumberControlSheet;
+  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;
+};
+
+#endif