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-rw-r--r--docshell/base/nsDocShellEnumerator.h39
1 files changed, 39 insertions, 0 deletions
diff --git a/docshell/base/nsDocShellEnumerator.h b/docshell/base/nsDocShellEnumerator.h
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+++ b/docshell/base/nsDocShellEnumerator.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 nsDocShellEnumerator_h___
+#define nsDocShellEnumerator_h___
+
+#include "nsTArray.h"
+
+class nsDocShell;
+class nsIDocShell;
+
+class MOZ_STACK_CLASS nsDocShellEnumerator {
+ public:
+ enum class EnumerationDirection : uint8_t { Forwards, Backwards };
+
+ nsDocShellEnumerator(EnumerationDirection aDirection, int32_t aDocShellType,
+ nsDocShell& aRootItem);
+
+ public:
+ nsresult BuildDocShellArray(nsTArray<RefPtr<nsIDocShell>>& aItemArray);
+
+ private:
+ nsresult BuildArrayRecursiveForwards(
+ nsDocShell* aItem, nsTArray<RefPtr<nsIDocShell>>& aItemArray);
+ nsresult BuildArrayRecursiveBackwards(
+ nsDocShell* aItem, nsTArray<RefPtr<nsIDocShell>>& aItemArray);
+
+ private:
+ const RefPtr<nsDocShell> mRootItem;
+
+ const int32_t mDocShellType; // only want shells of this type
+
+ const EnumerationDirection mDirection;
+};
+
+#endif // nsDocShellEnumerator_h___