1 files changed, 81 insertions, 0 deletions
diff --git a/layout/base/nsStyleSheetService.h b/layout/base/nsStyleSheetService.h
new file mode 100644
index 000000000..982e1a05a
--- /dev/null
+++ b/layout/base/nsStyleSheetService.h
@@ -0,0 +1,81 @@
+/* -*- 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/. */
+
+/* implementation of interface for managing user and user-agent style sheets */
+
+#ifndef nsStyleSheetService_h_
+#define nsStyleSheetService_h_
+
+#include "nsCOMArray.h"
+#include "nsCOMPtr.h"
+#include "nsIMemoryReporter.h"
+#include "nsIStyleSheetService.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/MemoryReporting.h"
+#include "mozilla/StyleSheet.h"
+
+class nsICategoryManager;
+class nsIMemoryReporter;
+class nsISimpleEnumerator;
+
+#define NS_STYLESHEETSERVICE_CID \
+{ 0x3b55e72e, 0xab7e, 0x431b, \
+  { 0x89, 0xc0, 0x3b, 0x06, 0xa8, 0xb1, 0x40, 0x16 } }
+
+#define NS_STYLESHEETSERVICE_CONTRACTID \
+  "@mozilla.org/content/style-sheet-service;1"
+
+class nsStyleSheetService final
+  : public nsIStyleSheetService
+  , public nsIMemoryReporter
+{
+ public:
+  nsStyleSheetService();
+
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSISTYLESHEETSERVICE
+  NS_DECL_NSIMEMORYREPORTER
+
+  nsresult Init();
+
+  nsTArray<RefPtr<mozilla::StyleSheet>>* AgentStyleSheets()
+  {
+    return &mSheets[AGENT_SHEET];
+  }
+  nsTArray<RefPtr<mozilla::StyleSheet>>* UserStyleSheets()
+  {
+    return &mSheets[USER_SHEET];
+  }
+  nsTArray<RefPtr<mozilla::StyleSheet>>* AuthorStyleSheets()
+  {
+    return &mSheets[AUTHOR_SHEET];
+  }
+
+  size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
+
+  static nsStyleSheetService *GetInstance();
+  static nsStyleSheetService *gInstance;
+
+ private:
+  ~nsStyleSheetService();
+
+  void RegisterFromEnumerator(nsICategoryManager  *aManager,
+                                          const char          *aCategory,
+                                          nsISimpleEnumerator *aEnumerator,
+                                          uint32_t             aSheetType);
+
+  int32_t FindSheetByURI(const nsTArray<RefPtr<mozilla::StyleSheet>>& aSheets,
+                         nsIURI* aSheetURI);
+
+  // Like LoadAndRegisterSheet, but doesn't notify.  If successful, the
+  // new sheet will be the last sheet in mSheets[aSheetType].
+  nsresult LoadAndRegisterSheetInternal(nsIURI *aSheetURI,
+                                        uint32_t aSheetType);
+
+  nsTArray<RefPtr<mozilla::StyleSheet>> mSheets[3];
+};
+
+#endif