1// Copyright (c) 2011 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "ui/views/repeat_controller.h"
6
7using base::TimeDelta;
8
9namespace views {
10
11// The delay before the first and then subsequent repeats. Values taken from
12// XUL code: http://mxr.mozilla.org/seamonkey/source/layout/xul/base/src/nsRepeatService.cpp#52
13const int kInitialRepeatDelay = 250;
14const int kRepeatDelay = 50;
15
16///////////////////////////////////////////////////////////////////////////////
17// RepeatController, public:
18
19RepeatController::RepeatController(const base::Closure& callback)
20    : callback_(callback) {
21}
22
23RepeatController::~RepeatController() {
24}
25
26void RepeatController::Start() {
27  // The first timer is slightly longer than subsequent repeats.
28  timer_.Start(FROM_HERE, TimeDelta::FromMilliseconds(kInitialRepeatDelay),
29               this, &RepeatController::Run);
30}
31
32void RepeatController::Stop() {
33  timer_.Stop();
34}
35
36///////////////////////////////////////////////////////////////////////////////
37// RepeatController, private:
38
39void RepeatController::Run() {
40  timer_.Start(FROM_HERE, TimeDelta::FromMilliseconds(kRepeatDelay), this,
41               &RepeatController::Run);
42  callback_.Run();
43}
44
45}  // namespace views
46