Add m-esr52 at 52.6.0

1 files changed, 42 insertions, 0 deletions

diff --git a/layout/generic/MathMLTextRunFactory.h b/layout/generic/MathMLTextRunFactory.h
new file mode 100644
index 000000000..6ebb710f5
--- /dev/null
+++ b/layout/generic/MathMLTextRunFactory.h
@@ -0,0 +1,42 @@
+/* -*- 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 MATHMLTEXTRUNFACTORY_H_
+#define MATHMLTEXTRUNFACTORY_H_
+
+#include "mozilla/UniquePtr.h"
+#include "nsTextRunTransformations.h"
+
+/**
+ * Builds textruns that render their text with MathML specific renderings.
+ */
+class MathMLTextRunFactory : public nsTransformingTextRunFactory {
+public:
+  MathMLTextRunFactory(UniquePtr<nsTransformingTextRunFactory> aInnerTransformingTextRunFactory,
+                       uint32_t aFlags, uint8_t aSSTYScriptLevel,
+                       float aFontInflation)
+    : mInnerTransformingTextRunFactory(Move(aInnerTransformingTextRunFactory)),
+      mFlags(aFlags),
+      mFontInflation(aFontInflation),
+      mSSTYScriptLevel(aSSTYScriptLevel) {}
+
+  virtual void RebuildTextRun(nsTransformedTextRun* aTextRun,
+                              mozilla::gfx::DrawTarget* aRefDrawTarget,
+                              gfxMissingFontRecorder* aMFR) override;
+  enum {
+    // Style effects which may override single character <mi> behaviour
+    MATH_FONT_STYLING_NORMAL   = 0x1, // fontstyle="normal" has been set.
+    MATH_FONT_WEIGHT_BOLD      = 0x2, // fontweight="bold" has been set.
+    MATH_FONT_FEATURE_DTLS     = 0x4, // font feature dtls should be set
+  };
+
+protected:
+  UniquePtr<nsTransformingTextRunFactory> mInnerTransformingTextRunFactory;
+  uint32_t mFlags;
+  float mFontInflation;
+  uint8_t mSSTYScriptLevel;
+};
+
+#endif /*MATHMLTEXTRUNFACTORY_H_*/