summaryrefslogtreecommitdiffstats
path: root/layout/mathml/nsMathMLmspaceFrame.h
diff options
context:
space:
mode:
Diffstat (limited to 'layout/mathml/nsMathMLmspaceFrame.h')
-rw-r--r--layout/mathml/nsMathMLmspaceFrame.h61
1 files changed, 61 insertions, 0 deletions
diff --git a/layout/mathml/nsMathMLmspaceFrame.h b/layout/mathml/nsMathMLmspaceFrame.h
new file mode 100644
index 0000000000..d0692d2dfe
--- /dev/null
+++ b/layout/mathml/nsMathMLmspaceFrame.h
@@ -0,0 +1,61 @@
+/* -*- 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 nsMathMLmspaceFrame_h___
+#define nsMathMLmspaceFrame_h___
+
+#include "mozilla/Attributes.h"
+#include "nsMathMLContainerFrame.h"
+
+namespace mozilla {
+class PresShell;
+} // namespace mozilla
+
+//
+// <mspace> -- space
+//
+
+class nsMathMLmspaceFrame final : public nsMathMLContainerFrame {
+ public:
+ NS_DECL_FRAMEARENA_HELPERS(nsMathMLmspaceFrame)
+
+ friend nsIFrame* NS_NewMathMLmspaceFrame(mozilla::PresShell* aPresShell,
+ ComputedStyle* aStyle);
+
+ 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 void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
+ const ReflowInput& aReflowInput,
+ nsReflowStatus& aStatus) override;
+
+ protected:
+ explicit nsMathMLmspaceFrame(ComputedStyle* aStyle,
+ nsPresContext* aPresContext)
+ : nsMathMLContainerFrame(aStyle, aPresContext, kClassID),
+ mWidth(0),
+ mHeight(0),
+ mDepth(0) {}
+ 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___ */