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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 "config.h"
#if ENABLE(PROGRESS_TAG)
#include "RenderProgress.h"
#include "HTMLNames.h"
#include "HTMLProgressElement.h"
#include "RenderTheme.h"
#include "ShadowElement.h"
#include <wtf/CurrentTime.h>
#include <wtf/RefPtr.h>
using namespace std;
namespace WebCore {
RenderProgress::RenderProgress(HTMLProgressElement* element)
: RenderIndicator(element)
, m_position(-1)
, m_animationStartTime(0)
, m_animationRepeatInterval(0)
, m_animationDuration(0)
, m_animating(false)
, m_animationTimer(this, &RenderProgress::animationTimerFired)
{
}
RenderProgress::~RenderProgress()
{
if (m_valuePart)
m_valuePart->detach();
}
void RenderProgress::updateFromElement()
{
HTMLProgressElement* element = progressElement();
if (m_position == element->position())
return;
m_position = element->position();
updateAnimationState();
RenderIndicator::updateFromElement();
}
double RenderProgress::animationProgress() const
{
return m_animating ? (fmod((currentTime() - m_animationStartTime), m_animationDuration) / m_animationDuration) : 0;
}
bool RenderProgress::isDeterminate() const
{
return 0 <= position();
}
void RenderProgress::animationTimerFired(Timer<RenderProgress>*)
{
repaint();
}
void RenderProgress::paint(PaintInfo& paintInfo, int tx, int ty)
{
if (paintInfo.phase == PaintPhaseBlockBackground) {
if (!m_animationTimer.isActive() && m_animating)
m_animationTimer.startOneShot(m_animationRepeatInterval);
}
RenderIndicator::paint(paintInfo, tx, ty);
}
void RenderProgress::layoutParts()
{
updatePartsState();
if (m_valuePart)
m_valuePart->layoutAsPart(valuePartRect());
updateAnimationState();
}
bool RenderProgress::shouldHaveParts() const
{
if (!style()->hasAppearance())
return true;
if (ShadowBlockElement::partShouldHaveStyle(this, PROGRESS_BAR_VALUE))
return true;
return false;
}
void RenderProgress::updatePartsState()
{
if (shouldHaveParts() && !m_valuePart) {
style()->setAppearance(NoControlPart);
m_valuePart = ShadowBlockElement::createForPart(this->node(), PROGRESS_BAR_VALUE);
addChild(m_valuePart->renderer());
} else if (!shouldHaveParts() && m_valuePart) {
m_valuePart->detach();
m_valuePart = 0;
}
}
void RenderProgress::updateAnimationState()
{
m_animationDuration = theme()->animationDurationForProgressBar(this);
m_animationRepeatInterval = theme()->animationRepeatIntervalForProgressBar(this);
bool animating = style()->hasAppearance() && m_animationDuration > 0;
if (animating == m_animating)
return;
m_animating = animating;
if (m_animating) {
m_animationStartTime = currentTime();
m_animationTimer.startOneShot(m_animationRepeatInterval);
} else
m_animationTimer.stop();
}
IntRect RenderProgress::valuePartRect() const
{
IntRect rect(borderLeft() + paddingLeft(), borderTop() + paddingTop(), lround((width() - borderLeft() - paddingLeft() - borderRight() - paddingRight()) * position()), height() - borderTop() - paddingTop() - borderBottom() - paddingBottom());
if (style()->direction() == RTL)
rect.setX(width() - borderRight() - paddingRight() - rect.width());
return rect;
}
HTMLProgressElement* RenderProgress::progressElement() const
{
return static_cast<HTMLProgressElement*>(node());
}
} // namespace WebCore
#endif
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