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-rw-r--r--layout/tables/nsITableLayoutStrategy.h59
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diff --git a/layout/tables/nsITableLayoutStrategy.h b/layout/tables/nsITableLayoutStrategy.h
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+// vim:cindent:ts=4:et:sw=4:
+/* 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/. */
+
+/*
+ * interface for the set of algorithms that determine column and table
+ * isizes
+ */
+
+#ifndef nsITableLayoutStrategy_h_
+#define nsITableLayoutStrategy_h_
+
+#include "nscore.h"
+#include "nsCoord.h"
+
+class gfxContext;
+namespace mozilla {
+struct ReflowInput;
+} // namespace mozilla
+
+class nsITableLayoutStrategy {
+ public:
+ using ReflowInput = mozilla::ReflowInput;
+
+ virtual ~nsITableLayoutStrategy() = default;
+
+ /** Implement nsIFrame::GetMinISize for the table */
+ virtual nscoord GetMinISize(gfxContext* aRenderingContext) = 0;
+
+ /** Implement nsIFrame::GetPrefISize for the table */
+ virtual nscoord GetPrefISize(gfxContext* aRenderingContext,
+ bool aComputingSize) = 0;
+
+ /** Implement nsIFrame::MarkIntrinsicISizesDirty for the table */
+ virtual void MarkIntrinsicISizesDirty() = 0;
+
+ /**
+ * Compute final column isizes based on the intrinsic isize data and
+ * the available isize.
+ */
+ virtual void ComputeColumnISizes(const ReflowInput& aReflowInput) = 0;
+
+ /**
+ * Return the type of table layout strategy, without the cost of
+ * a virtual function call
+ */
+ enum Type { Auto, Fixed };
+ Type GetType() const { return mType; }
+
+ protected:
+ explicit nsITableLayoutStrategy(Type aType) : mType(aType) {}
+
+ private:
+ Type mType;
+};
+
+#endif /* !defined(nsITableLayoutStrategy_h_) */