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// Copyright (c) 2011 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_AURA_CLIENT_ACTIVATION_DELEGATE_H_
#define UI_AURA_CLIENT_ACTIVATION_DELEGATE_H_
#pragma once
#include "ui/aura/aura_export.h"
namespace aura {
class Event;
class Window;
namespace client {
// An interface implemented by an object that configures and responds to changes
// to a window's activation state.
class AURA_EXPORT ActivationDelegate {
public:
// Returns true if the window should be activated. |event| is either the mouse
// event supplied if the activation is the result of a mouse, or the touch
// event if the activation is the result of a touch, or NULL if activation is
// attempted for another reason.
virtual bool ShouldActivate(Event* event) = 0;
// Sent when the window is activated.
virtual void OnActivated() = 0;
// Sent when the window loses active status.
virtual void OnLostActive() = 0;
protected:
virtual ~ActivationDelegate() {}
};
// Sets/Gets the ActivationDelegate on the Window. No ownership changes.
AURA_EXPORT void SetActivationDelegate(Window* window,
ActivationDelegate* delegate);
AURA_EXPORT ActivationDelegate* GetActivationDelegate(Window* window);
} // namespace client
} // namespace aura
#endif // UI_AURA_CLIENT_ACTIVATION_DELEGATE_H_
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