15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2011 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef UI_VIEWS_REPEAT_CONTROLLER_H_ 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define UI_VIEWS_REPEAT_CONTROLLER_H_ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/callback.h" 9eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch#include "base/timer/timer.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace views { 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/////////////////////////////////////////////////////////////////////////////// 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// RepeatController 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// An object that handles auto-repeating UI actions. There is a longer initial 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// delay after which point repeats become constant. Users provide a callback 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// that is notified when each repeat occurs so that they can perform the 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// associated action. 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/////////////////////////////////////////////////////////////////////////////// 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class RepeatController { 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The RepeatController takes ownership of this callback object. 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) explicit RepeatController(const base::Closure& callback); 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~RepeatController(); 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Start repeating. 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void Start(); 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Stop repeating. 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void Stop(); 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Called when the timer expires. 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void Run(); 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The current timer. 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::OneShotTimer<RepeatController> timer_; 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::Closure callback_; 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(RepeatController); 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace views 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // UI_VIEWS_REPEAT_CONTROLLER_H_ 50