1 files changed, 129 insertions, 0 deletions
diff --git a/layout/xul/nsBox.h b/layout/xul/nsBox.h
new file mode 100644
index 000000000..a3dbfcfee
--- /dev/null
+++ b/layout/xul/nsBox.h
@@ -0,0 +1,129 @@
+/* -*- 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/. */
+
+#ifndef nsBox_h___
+#define nsBox_h___
+
+#include "mozilla/Attributes.h"
+#include "nsIFrame.h"
+
+class nsITheme;
+
+class nsBox : public nsIFrame {
+
+public:
+
+  friend class nsIFrame;
+
+  static void Shutdown();
+
+  virtual nsSize GetPrefSize(nsBoxLayoutState& aBoxLayoutState) override;
+  virtual nsSize GetMinSize(nsBoxLayoutState& aBoxLayoutState) override;
+  virtual nsSize GetMaxSize(nsBoxLayoutState& aBoxLayoutState) override;
+  virtual nscoord GetFlex(nsBoxLayoutState& aBoxLayoutState) override;
+  virtual nscoord GetBoxAscent(nsBoxLayoutState& aBoxLayoutState) override;
+
+  virtual nsSize GetMinSizeForScrollArea(nsBoxLayoutState& aBoxLayoutState) override;
+
+  virtual bool IsCollapsed() override;
+
+  virtual void SetBounds(nsBoxLayoutState& aBoxLayoutState, const nsRect& aRect,
+                         bool aRemoveOverflowAreas = false) override;
+
+  virtual nsresult GetBorder(nsMargin& aBorderAndPadding) override;
+  virtual nsresult GetPadding(nsMargin& aBorderAndPadding) override;
+  virtual nsresult GetMargin(nsMargin& aMargin) override;
+
+  virtual Valignment GetVAlign() const override { return vAlign_Top; }
+  virtual Halignment GetHAlign() const override { return hAlign_Left; }
+
+  virtual nsresult RelayoutChildAtOrdinal(nsBoxLayoutState& aState, nsIFrame* aChild) override;
+
+#ifdef DEBUG_LAYOUT
+  NS_IMETHOD GetDebugBoxAt(const nsPoint& aPoint, nsIFrame** aBox);
+  virtual nsresult GetDebug(bool& aDebug) override;
+  virtual nsresult SetDebug(nsBoxLayoutState& aState, bool aDebug) override;
+
+  virtual nsresult DumpBox(FILE* out) override;
+  void PropagateDebug(nsBoxLayoutState& aState);
+#endif
+
+  nsBox();
+  virtual ~nsBox();
+
+  /**
+   * Returns true if this box clips its children, e.g., if this box is an sc
+rollbox.
+  */
+  virtual bool DoesClipChildren();
+  virtual bool ComputesOwnOverflowArea() = 0;
+
+  nsresult SyncLayout(nsBoxLayoutState& aBoxLayoutState);
+
+  bool DoesNeedRecalc(const nsSize& aSize);
+  bool DoesNeedRecalc(nscoord aCoord);
+  void SizeNeedsRecalc(nsSize& aSize);
+  void CoordNeedsRecalc(nscoord& aCoord);
+
+  void AddBorderAndPadding(nsSize& aSize);
+
+  static void AddBorderAndPadding(nsIFrame* aBox, nsSize& aSize);
+  static void AddMargin(nsIFrame* aChild, nsSize& aSize);
+  static void AddMargin(nsSize& aSize, const nsMargin& aMargin);
+
+  static nsSize BoundsCheckMinMax(const nsSize& aMinSize, const nsSize& aMaxSize);
+  static nsSize BoundsCheck(const nsSize& aMinSize, const nsSize& aPrefSize, const nsSize& aMaxSize);
+  static nscoord BoundsCheck(nscoord aMinSize, nscoord aPrefSize, nscoord aMaxSize);
+
+  static nsIFrame* GetChildBox(const nsIFrame* aFrame);
+  static nsIFrame* GetNextBox(const nsIFrame* aFrame);
+  static nsIFrame* GetParentBox(const nsIFrame* aFrame);
+
+protected:
+
+#ifdef DEBUG_LAYOUT
+  virtual void AppendAttribute(const nsAutoString& aAttribute, const nsAutoString& aValue, nsAutoString& aResult);
+
+  virtual void ListBox(nsAutoString& aResult);
+#endif
+  
+  virtual void GetLayoutFlags(uint32_t& aFlags);
+
+  nsresult BeginLayout(nsBoxLayoutState& aState);
+  NS_IMETHOD DoLayout(nsBoxLayoutState& aBoxLayoutState);
+  nsresult EndLayout(nsBoxLayoutState& aState);
+
+#ifdef DEBUG_LAYOUT
+  virtual void GetBoxName(nsAutoString& aName);
+  void PropagateDebug(nsBoxLayoutState& aState);
+#endif
+
+  static bool gGotTheme;
+  static nsITheme* gTheme;
+
+  enum eMouseThrough {
+    unset,
+    never,
+    always
+  };
+
+private:
+
+  //nscoord mX;
+  //nscoord mY;
+};
+
+#ifdef DEBUG_LAYOUT
+#define NS_BOX_ASSERTION(box,expr,str) \
+  if (!(expr)) { \
+       box->DumpBox(stdout); \
+       NS_DebugBreak(NSDebugAssertion, str, #expr, __FILE__, __LINE__); \
+  }
+#else
+#define NS_BOX_ASSERTION(box,expr,str) {}
+#endif
+
+#endif
+