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-rw-r--r--layout/mathml/nsMathMLmspaceFrame.h56
1 files changed, 56 insertions, 0 deletions
diff --git a/layout/mathml/nsMathMLmspaceFrame.h b/layout/mathml/nsMathMLmspaceFrame.h
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+++ b/layout/mathml/nsMathMLmspaceFrame.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/. */
+
+#ifndef nsMathMLmspaceFrame_h___
+#define nsMathMLmspaceFrame_h___
+
+#include "mozilla/Attributes.h"
+#include "nsMathMLContainerFrame.h"
+
+//
+// <mspace> -- space
+//
+
+class nsMathMLmspaceFrame : public nsMathMLContainerFrame {
+public:
+ NS_DECL_FRAMEARENA_HELPERS
+
+ friend nsIFrame* NS_NewMathMLmspaceFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
+
+ NS_IMETHOD
+ TransmitAutomaticData() override {
+ // The REC defines the following elements to be space-like:
+ // * an mtext, mspace, maligngroup, or malignmark element;
+ mPresentationData.flags |= NS_MATHML_SPACE_LIKE;
+ return NS_OK;
+ }
+
+ virtual bool IsLeaf() const override;
+
+ virtual void
+ Reflow(nsPresContext* aPresContext,
+ ReflowOutput& aDesiredSize,
+ const ReflowInput& aReflowInput,
+ nsReflowStatus& aStatus) override;
+
+protected:
+ explicit nsMathMLmspaceFrame(nsStyleContext* aContext) : nsMathMLContainerFrame(aContext) {}
+ virtual ~nsMathMLmspaceFrame();
+
+ virtual nsresult
+ MeasureForWidth(DrawTarget* aDrawTarget,
+ ReflowOutput& aDesiredSize) override;
+
+private:
+ nscoord mWidth;
+ nscoord mHeight;
+ nscoord mDepth;
+
+ // helper method to initialize our member data
+ void
+ ProcessAttributes(nsPresContext* aPresContext);
+};
+
+#endif /* nsMathMLmspaceFrame_h___ */