Single pod autofocus disabled for touch view mode. Delegate class created for ash interactions.

chrome/browser/ui/webui/chromeos/maximize_mode_controller_delegate.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 CHROME_BROWSER_UI_WEBUI_CHROMEOS_MAXIMIZE_MODE_CONTROLLER_DELEGATE_H_
+#define CHROME_BROWSER_UI_WEBUI_CHROMEOS_MAXIMIZE_MODE_CONTROLLER_DELEGATE_H_
+
+#include "ash/shell_observer.h"
+#include "base/observer_list.h"
+
+namespace chromeos {
+
+// An interface for ash::MaximizeModeController.
+class MaximizeModeControllerDelegate : public ash::ShellObserver {
+ public:
+  // Observer that reports changes to the state of MaximizeModeController's
+  // rotation lock.
+  class Observer {
+   public:
+    // Invoked when maximize mode started/ended.
+    virtual void OnMaximizeModeStarted() {}
+    virtual void OnMaximizeModeEnded() {}
+
+   protected:
+    virtual ~Observer() {}
+  };
+
+  MaximizeModeControllerDelegate();
+  virtual ~MaximizeModeControllerDelegate();
+
+  // Add/Remove observers.
+  void AddObserver(Observer* observer);
+  void RemoveObserver(Observer* observer);
+
+  // Test if the Maximize Mode is enabled or not.
+  bool IsMaximizeModeEnabled() const;
+
+
+ private:
+  // ash::ShellObserver implementation:
+  virtual void OnMaximizeModeStarted() OVERRIDE;
+  virtual void OnMaximizeModeEnded() OVERRIDE;
+
+  // Mode state change observers.
+  ObserverList<Observer> observers_;
+
+  DISALLOW_COPY_AND_ASSIGN(MaximizeModeControllerDelegate);
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_MAXIMIZE_MODE_CONTROLLER_DELEGATE_H_