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/*
* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "core/layout/LayoutProgress.h"
#include "core/html/HTMLProgressElement.h"
#include "core/layout/LayoutTheme.h"
#include "wtf/CurrentTime.h"
#include "wtf/RefPtr.h"
namespace blink {
LayoutProgress::LayoutProgress(HTMLProgressElement* element)
: LayoutBlockFlow(element),
m_position(HTMLProgressElement::InvalidPosition),
m_animationStartTime(0),
m_animationRepeatInterval(0),
m_animationDuration(0),
m_animating(false),
m_animationTimer(this, &LayoutProgress::animationTimerFired) {}
LayoutProgress::~LayoutProgress() {}
void LayoutProgress::willBeDestroyed() {
if (m_animating) {
m_animationTimer.stop();
m_animating = false;
}
LayoutBlockFlow::willBeDestroyed();
}
void LayoutProgress::updateFromElement() {
HTMLProgressElement* element = progressElement();
if (m_position == element->position())
return;
m_position = element->position();
updateAnimationState();
setShouldDoFullPaintInvalidation();
LayoutBlockFlow::updateFromElement();
}
double LayoutProgress::animationProgress() const {
return m_animating ? (fmod((currentTime() - m_animationStartTime),
m_animationDuration) /
m_animationDuration)
: 0;
}
bool LayoutProgress::isDeterminate() const {
return (HTMLProgressElement::IndeterminatePosition != position() &&
HTMLProgressElement::InvalidPosition != position());
}
bool LayoutProgress::isAnimationTimerActive() const {
return m_animationTimer.isActive();
}
bool LayoutProgress::isAnimating() const {
return m_animating;
}
void LayoutProgress::animationTimerFired(TimerBase*) {
setShouldDoFullPaintInvalidation();
if (!m_animationTimer.isActive() && m_animating)
m_animationTimer.startOneShot(m_animationRepeatInterval, BLINK_FROM_HERE);
}
void LayoutProgress::updateAnimationState() {
m_animationDuration = LayoutTheme::theme().animationDurationForProgressBar();
m_animationRepeatInterval =
LayoutTheme::theme().animationRepeatIntervalForProgressBar();
bool animating =
!isDeterminate() && style()->hasAppearance() && m_animationDuration > 0;
if (animating == m_animating)
return;
m_animating = animating;
if (m_animating) {
m_animationStartTime = currentTime();
m_animationTimer.startOneShot(m_animationRepeatInterval, BLINK_FROM_HERE);
} else {
m_animationTimer.stop();
}
}
HTMLProgressElement* LayoutProgress::progressElement() const {
return toHTMLProgressElement(node());
}
} // namespace blink
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