import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

layout/style/ImportRule.h

@@ -0,0 +1,72 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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/. */
+
+/* class for CSS @import rules */
+
+#ifndef mozilla_css_ImportRule_h__
+#define mozilla_css_ImportRule_h__
+
+#include "mozilla/Attributes.h"
+
+#include "mozilla/MemoryReporting.h"
+#include "mozilla/css/Rule.h"
+#include "nsIDOMCSSImportRule.h"
+
+class nsMediaList;
+class nsString;
+
+namespace mozilla {
+
+class CSSStyleSheet;
+
+namespace css {
+
+class ImportRule final : public Rule,
+                         public nsIDOMCSSImportRule
+{
+public:
+  ImportRule(nsMediaList* aMedia, const nsString& aURLSpec,
+             uint32_t aLineNumber, uint32_t aColumnNumber);
+private:
+  // for |Clone|
+  ImportRule(const ImportRule& aCopy);
+  ~ImportRule();
+public:
+  NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(ImportRule, mozilla::css::Rule)
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+
+  DECL_STYLE_RULE_INHERIT
+
+#ifdef HAVE_CPP_AMBIGUITY_RESOLVING_USING
+  using Rule::GetStyleSheet; // unhide since nsIDOMCSSImportRule has its own GetStyleSheet
+#endif
+
+  // Rule methods
+#ifdef DEBUG
+  virtual void List(FILE* out = stdout, int32_t aIndent = 0) const override;
+#endif
+  virtual int32_t GetType() const override;
+  virtual already_AddRefed<Rule> Clone() const override;
+
+  void SetSheet(CSSStyleSheet*);
+
+  virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const override;
+
+  // nsIDOMCSSRule interface
+  NS_DECL_NSIDOMCSSRULE
+
+  // nsIDOMCSSImportRule interface
+  NS_DECL_NSIDOMCSSIMPORTRULE
+
+private:
+  nsString  mURLSpec;
+  RefPtr<nsMediaList> mMedia;
+  RefPtr<CSSStyleSheet> mChildSheet;
+};
+
+} // namespace css
+} // namespace mozilla
+
+#endif /* mozilla_css_ImportRule_h__ */