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// Copyright (c) 2006-2008 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.
#include "chrome/views/repeat_controller.h"
namespace ChromeViews {
// The delay before the first and then subsequent repeats. Values taken from
// XUL code: http://mxr.mozilla.org/seamonkey/source/layout/xul/base/src/nsRepeatService.cpp#52
static const int kInitialRepeatDelay = 250;
static const int kRepeatDelay = 50;
///////////////////////////////////////////////////////////////////////////////
// RepeatController, public:
RepeatController::RepeatController(RepeatCallback* callback)
: timer_(NULL),
callback_(callback) {
}
RepeatController::~RepeatController() {
DestroyTimer();
}
void RepeatController::Start() {
DCHECK(!timer_);
// The first timer is slightly longer than subsequent repeats.
timer_ = MessageLoop::current()->timer_manager()->StartTimer(
kInitialRepeatDelay, this, false);
}
void RepeatController::Stop() {
DestroyTimer();
}
void RepeatController::Run() {
DestroyTimer();
// TODO(beng): (Cleanup) change this to just Run() when base rolls forward.
callback_->RunWithParams(Tuple0());
timer_ = MessageLoop::current()->timer_manager()->StartTimer(
kRepeatDelay, this, true);
}
///////////////////////////////////////////////////////////////////////////////
// RepeatController, private:
void RepeatController::DestroyTimer() {
if (!timer_)
return;
MessageLoop::current()->timer_manager()->StopTimer(timer_);
delete timer_;
timer_ = NULL;
}
}
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