Create ModeIndicatorController

chrome/browser/chromeos/input_method/mode_indicator_controller.h

+// Copyright (c) 2013 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 CHROME_BROWSER_CHROMEOS_INPUT_METHOD_MODE_INDICATOR_CONTROLLER_H_
+#define CHROME_BROWSER_CHROMEOS_INPUT_METHOD_MODE_INDICATOR_CONTROLLER_H_
+
+#include "base/memory/scoped_ptr.h"
+#include "chromeos/ime/input_method_manager.h"
+
+namespace gfx {
+class Rect;
+}  // namespace gfx
+
+namespace chromeos {
+namespace input_method {
+
+class ModeIndicatorWidget;
+
+// ModeIndicatorController is the controller of ModeIndicatiorWidget on the
+// MVC model.
+class ModeIndicatorController
+    : public InputMethodManager::Observer {
+ public:
+  // This class takes the ownership of |mi_widget|.
+  explicit ModeIndicatorController(ModeIndicatorWidget *mi_widget);
+  virtual ~ModeIndicatorController();
+
+  // Set cursor location, which is the base point to display this indicator.
+  // Bacisally this indicator is displayed underneath the cursor.
+  void SetCursorLocation(const gfx::Rect& cursor_location);
+
+ private:
+  // InputMethodManager::Observer implementation.
+  virtual void InputMethodChanged(InputMethodManager* manager,
+                                  bool show_message) OVERRIDE;
+  virtual void InputMethodPropertyChanged(InputMethodManager* manager) OVERRIDE;
+
+  scoped_ptr<ModeIndicatorWidget> mi_widget_;
+
+  DISALLOW_COPY_AND_ASSIGN(ModeIndicatorController);
+};
+
+}  // namespace input_method
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_INPUT_METHOD_MODE_INDICATOR_CONTROLLER_H_