Add m-esr52 at 52.6.0

1 files changed, 68 insertions, 0 deletions

diff --git a/layout/mathml/nsMathMLTokenFrame.h b/layout/mathml/nsMathMLTokenFrame.h
new file mode 100644
index 000000000..dec2e3c13
--- /dev/null
+++ b/layout/mathml/nsMathMLTokenFrame.h
@@ -0,0 +1,68 @@
+/* -*- 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 nsMathMLTokenFrame_h___
+#define nsMathMLTokenFrame_h___
+
+#include "mozilla/Attributes.h"
+#include "nsMathMLContainerFrame.h"
+
+//
+// Base class to handle token elements
+//
+
+class nsMathMLTokenFrame : public nsMathMLContainerFrame {
+public:
+  NS_DECL_FRAMEARENA_HELPERS
+
+  friend nsIFrame* NS_NewMathMLTokenFrame(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;
+    if (mContent->IsMathMLElement(nsGkAtoms::mtext_)) {
+      mPresentationData.flags |= NS_MATHML_SPACE_LIKE;
+    }
+    return NS_OK;
+  }
+
+  NS_IMETHOD
+  InheritAutomaticData(nsIFrame* aParent) override;
+
+  virtual eMathMLFrameType GetMathMLFrameType() override;
+
+  virtual void
+  SetInitialChildList(ChildListID     aListID,
+                      nsFrameList&    aChildList) override;
+
+  virtual void
+  AppendFrames(ChildListID            aListID,
+               nsFrameList&           aChildList) override;
+
+  virtual void
+  InsertFrames(ChildListID            aListID,
+               nsIFrame*              aPrevFrame,
+               nsFrameList&           aChildList) override;
+
+  virtual void
+  Reflow(nsPresContext*          aPresContext,
+         ReflowOutput&     aDesiredSize,
+         const ReflowInput& aReflowInput,
+         nsReflowStatus&          aStatus) override;
+
+  virtual nsresult
+  Place(DrawTarget*          aDrawTarget,
+        bool                 aPlaceOrigin,
+        ReflowOutput& aDesiredSize) override;
+
+protected:
+  explicit nsMathMLTokenFrame(nsStyleContext* aContext) : nsMathMLContainerFrame(aContext) {}
+  virtual ~nsMathMLTokenFrame();
+
+  void MarkTextFramesAsTokenMathML();
+};
+
+#endif /* nsMathMLTokentFrame_h___ */