1 files changed, 60 insertions, 0 deletions
diff --git a/layout/xul/grid/nsGridRowLayout.h b/layout/xul/grid/nsGridRowLayout.h
new file mode 100644
index 000000000..22a6f12c9
--- /dev/null
+++ b/layout/xul/grid/nsGridRowLayout.h
@@ -0,0 +1,60 @@
+/* -*- 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/. */
+
+/**
+ 
+  Author:
+  Eric D Vaughan
+
+**/
+
+#ifndef nsGridRowLayout_h___
+#define nsGridRowLayout_h___
+
+#include "mozilla/Attributes.h"
+#include "nsSprocketLayout.h"
+#include "nsIGridPart.h"
+class nsGridRowGroupLayout;
+class nsGridLayout2;
+class nsBoxLayoutState;
+class nsGrid;
+
+/**
+ * A common base class for nsGridRowLeafLayout (the nsBoxLayout object
+ * for a grid row or column) and nsGridRowGroupLayout (the nsBoxLayout
+ * object for a grid row group or column group).
+ */
+// XXXldb This needs a name that indicates that it's a base class for
+// both row and rows (row-group).
+class nsGridRowLayout : public nsSprocketLayout,
+                        public nsIGridPart
+{
+public:
+  NS_DECL_ISUPPORTS_INHERITED
+
+  virtual nsGridRowGroupLayout* CastToRowGroupLayout() override { return nullptr; }
+  virtual nsGridLayout2* CastToGridLayout() override { return nullptr; }
+  virtual nsGrid* GetGrid(nsIFrame* aBox, int32_t* aIndex, nsGridRowLayout* aRequestor=nullptr) override;
+  virtual nsIGridPart* GetParentGridPart(nsIFrame* aBox, nsIFrame** aParentBox) override;
+  virtual void ChildrenInserted(nsIFrame* aBox, nsBoxLayoutState& aState,
+                                nsIFrame* aPrevBox,
+                                const nsFrameList::Slice& aNewChildren) override;
+  virtual void ChildrenAppended(nsIFrame* aBox, nsBoxLayoutState& aState,
+                                const nsFrameList::Slice& aNewChildren) override;
+  virtual void ChildrenRemoved(nsIFrame* aBox, nsBoxLayoutState& aState, nsIFrame* aChildList) override;
+  virtual void ChildrenSet(nsIFrame* aBox, nsBoxLayoutState& aState, nsIFrame* aChildList) override;
+  virtual nsMargin GetTotalMargin(nsIFrame* aBox, bool aIsHorizontal) override;
+
+  virtual nsIGridPart* AsGridPart() override { return this; }
+
+protected:
+  virtual void ChildAddedOrRemoved(nsIFrame* aBox, nsBoxLayoutState& aState)=0;
+
+  nsGridRowLayout();
+  virtual ~nsGridRowLayout();
+};
+
+#endif
+