1 files changed, 65 insertions, 0 deletions
diff --git a/dom/grid/GridLines.h b/dom/grid/GridLines.h
new file mode 100644
index 0000000000..f95993dc6d
--- /dev/null
+++ b/dom/grid/GridLines.h
@@ -0,0 +1,65 @@
+/* -*- 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 mozilla_dom_GridLines_h
+#define mozilla_dom_GridLines_h
+
+#include "nsCoord.h"
+#include "nsTArray.h"
+#include "nsWrapperCache.h"
+
+class nsAtom;
+
+namespace mozilla {
+
+struct ComputedGridTrackInfo;
+struct ComputedGridLineInfo;
+
+namespace dom {
+
+class GridDimension;
+class GridLine;
+class GridArea;
+
+class GridLines : public nsISupports, public nsWrapperCache {
+ public:
+  explicit GridLines(GridDimension* aParent);
+
+ protected:
+  virtual ~GridLines();
+
+ public:
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(GridLines)
+
+  virtual JSObject* WrapObject(JSContext* aCx,
+                               JS::Handle<JSObject*> aGivenProto) override;
+  GridDimension* GetParentObject() { return mParent; }
+
+  uint32_t Length() const;
+  GridLine* Item(uint32_t aIndex);
+  GridLine* IndexedGetter(uint32_t aIndex, bool& aFound);
+
+  void SetLineInfo(const ComputedGridTrackInfo* aTrackInfo,
+                   const ComputedGridLineInfo* aLineInfo,
+                   const nsTArray<RefPtr<GridArea>>& aAreas, bool aIsRow);
+
+ protected:
+  uint32_t AppendRemovedAutoFits(const ComputedGridTrackInfo* aTrackInfo,
+                                 const ComputedGridLineInfo* aLineInfo,
+                                 nscoord aLastTrackEdge, uint32_t& aRepeatIndex,
+                                 uint32_t aNumRepeatTracks,
+                                 uint32_t aNumLeadingTracks,
+                                 nsTArray<RefPtr<nsAtom>>& aLineNames);
+
+  RefPtr<GridDimension> mParent;
+  nsTArray<RefPtr<GridLine>> mLines;
+};
+
+}  // namespace dom
+}  // namespace mozilla
+
+#endif /* mozilla_dom_GridLines_h */