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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_VIEWS_REPEAT_CONTROLLER_H_
#define UI_VIEWS_REPEAT_CONTROLLER_H_
#include "base/callback.h"
#include "base/timer/timer.h"
namespace views {
///////////////////////////////////////////////////////////////////////////////
//
// RepeatController
//
// An object that handles auto-repeating UI actions. There is a longer initial
// delay after which point repeats become constant. Users provide a callback
// that is notified when each repeat occurs so that they can perform the
// associated action.
//
///////////////////////////////////////////////////////////////////////////////
class RepeatController {
public:
// The RepeatController takes ownership of this callback object.
explicit RepeatController(const base::Closure& callback);
virtual ~RepeatController();
// Start repeating.
void Start();
// Stop repeating.
void Stop();
private:
// Called when the timer expires.
void Run();
// The current timer.
base::OneShotTimer<RepeatController> timer_;
base::Closure callback_;
DISALLOW_COPY_AND_ASSIGN(RepeatController);
};
} // namespace views
#endif // UI_VIEWS_REPEAT_CONTROLLER_H_
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