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// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#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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