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-rw-r--r--layout/xul/nsStackFrame.h46
1 files changed, 46 insertions, 0 deletions
diff --git a/layout/xul/nsStackFrame.h b/layout/xul/nsStackFrame.h
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+++ b/layout/xul/nsStackFrame.h
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+/* -*- 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/. */
+
+/**
+
+ Eric D Vaughan
+ A frame that can have multiple children. Only one child may be displayed at one time. So the
+ can be flipped though like a Stack of cards.
+
+**/
+
+#ifndef nsStackFrame_h___
+#define nsStackFrame_h___
+
+#include "mozilla/Attributes.h"
+#include "nsBoxFrame.h"
+
+class nsStackFrame : public nsBoxFrame
+{
+public:
+ NS_DECL_FRAMEARENA_HELPERS
+
+ friend nsIFrame* NS_NewStackFrame(nsIPresShell* aPresShell,
+ nsStyleContext* aContext);
+
+#ifdef DEBUG_FRAME_DUMP
+ virtual nsresult GetFrameName(nsAString& aResult) const override
+ {
+ return MakeFrameName(NS_LITERAL_STRING("Stack"), aResult);
+ }
+#endif
+
+ virtual void BuildDisplayListForChildren(nsDisplayListBuilder* aBuilder,
+ const nsRect& aDirtyRect,
+ const nsDisplayListSet& aLists) override;
+
+protected:
+ explicit nsStackFrame(nsStyleContext* aContext);
+}; // class nsStackFrame
+
+
+
+#endif
+