1 files changed, 50 insertions, 0 deletions
diff --git a/accessible/base/StyleInfo.h b/accessible/base/StyleInfo.h
new file mode 100644
index 0000000000..7a909dd7ad
--- /dev/null
+++ b/accessible/base/StyleInfo.h
@@ -0,0 +1,50 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set expandtab shiftwidth=2 tabstop=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 _mozilla_a11y_style_h_
+#define _mozilla_a11y_style_h_
+
+#include "mozilla/gfx/Types.h"
+#include "mozilla/ComputedStyle.h"
+
+namespace mozilla {
+namespace dom {
+class Element;
+}  // namespace dom
+namespace a11y {
+
+class StyleInfo {
+ public:
+  explicit StyleInfo(dom::Element* aElement);
+  ~StyleInfo() {}
+
+  already_AddRefed<nsAtom> Display();
+  already_AddRefed<nsAtom> TextAlign();
+  mozilla::LengthPercentage TextIndent();
+  CSSCoord MarginLeft() { return Margin(eSideLeft); }
+  CSSCoord MarginRight() { return Margin(eSideRight); }
+  CSSCoord MarginTop() { return Margin(eSideTop); }
+  CSSCoord MarginBottom() { return Margin(eSideBottom); }
+
+  static void FormatColor(const nscolor& aValue, nsAString& aFormattedValue);
+  static already_AddRefed<nsAtom> TextDecorationStyleToAtom(
+      StyleTextDecorationStyle aValue);
+
+ private:
+  StyleInfo() = delete;
+  StyleInfo(const StyleInfo&) = delete;
+  StyleInfo& operator=(const StyleInfo&) = delete;
+
+  CSSCoord Margin(Side aSide);
+
+  dom::Element* mElement;
+  RefPtr<const ComputedStyle> mComputedStyle;
+};
+
+}  // namespace a11y
+}  // namespace mozilla
+
+#endif