XKB implementation of Ozone key layout.

ui/events/ozone/layout/layout_util.h

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef UI_EVENTS_OZONE_LAYOUT_LAYOUT_UTIL_H_
+#define UI_EVENTS_OZONE_LAYOUT_LAYOUT_UTIL_H_
+
+// TODO(kpschoedel): consider moving this out of Ozone.
+
+#include "base/strings/string16.h"
+#include "ui/events/keycodes/keyboard_codes.h"
+
+namespace ui {
+
+enum class DomCode;
+enum class DomKey;
+
+// Returns the Windows-based VKEY value corresponding to a DOM Level 3 |code|.
+// The returned VKEY is located (e.g. VKEY_LSHIFT).
+KeyboardCode DomCodeToKeyboardCode(DomCode dom_code);
+
+// Returns a Windows-based VKEY for a non-printable DOM Level 3 |key|.
+// The returned VKEY is non-located (e.g. VKEY_SHIFT).
+KeyboardCode NonPrintableDomKeyToKeyboardCode(DomKey dom_key);
+
+// Determine the non-located VKEY corresponding to a located VKEY.
+KeyboardCode DeLocateKeyboardCode(KeyboardCode key_code);
+
+// Returns true control character corresponding to a physical key.
+// In some contexts this is used instead of the key layout.
+bool LookupControlCharacter(DomCode dom_code,
+                            int flags,
+                            DomKey* dom_key,
+                            base::char16* character,
+                            KeyboardCode* key_code);
+
+}  // namespace ui
+
+#endif  // UI_EVENTS_OZONE_LAYOUT_LAYOUT_UTIL_H_