Ozone keyboard layout

ui/ozone/public/keyboard_layouts.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_OZONE_PUBLIC_KEYBOARD_LAYOUTS_H_
+#define UI_OZONE_PUBLIC_KEYBOARD_LAYOUTS_H_
+
+#include "base/strings/string16.h"
+#include "ui/events/keycodes/keyboard_codes.h"
+#include "ui/ozone/ozone_export.h"
+
+namespace ui {
+
+enum class DomCode;
+enum class DomKey;
+
+class OZONE_EXPORT KeyboardLayoutsOzone {

[kpschoedel, 2014/11/20 16:18:38]

https://docs.google.com/document/d/1AjtS4zAA4KW7yEEShgjYRppck8ZFUpb7PMcz0fh7I...

I hate this name.

+ public:
+  KeyboardLayoutsOzone(){};
+  virtual ~KeyboardLayoutsOzone(){};
+
+  // Returns true if it is possible to change the current layout.
+  virtual bool CanSetCurrentLayout() = 0;
+
+  // Sets the current layout; returns true on success.
+  virtual bool SetCurrentLayoutByName(const std::string& layout_name) = 0;
+
+  // Returns true if the current layout makes use of the ISO Level 5 Shift key.
+  virtual bool UsesISOLevel5Shift() = 0;
+
+  // Returns true if the current layout makes use of the AltGr
+  // (ISO Level 3 Shift) key.
+  virtual bool UsesAltGr() = 0;
+
+  // Provides the interpretation of a physical key.
+  //
+  // The caller must supply valid addresses for all the output parameters;
+  // the function must not use their initial values.
+  //
+  // If the function can determine an interpretation of the (dom_code, flags)
+  // values, it must set *dom_key and must set *character, may optionally
+  // set *key_code, and returns true. A layout function that does not directly
+  // know the correct KeyboardCode should not touch *key_code.
+  //
+  // Otherwise, it must not set any of the output parameters, and returns false.
+  virtual bool Lookup(DomCode dom_code,
+                      int flags,
+                      DomKey* dom_key,
+                      base::char16* character,
+                      KeyboardCode* key_code) = 0;
+};
+
+}  // namespace ui
+
+#endif  // UI_OZONE_PUBLIC_KEYBOARD_LAYOUTS_H_