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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 "third_party/blink/renderer/core/layout/layout_progress.h"
#include "base/memory/scoped_refptr.h"
#include "third_party/blink/public/platform/task_type.h"
#include "third_party/blink/renderer/core/html/html_progress_element.h"
#include "third_party/blink/renderer/core/layout/layout_theme.h"
namespace blink {
namespace {
constexpr base::TimeDelta kAnimationInterval = base::Milliseconds(125);
constexpr base::TimeDelta kAnimationDuration = kAnimationInterval * 20;
} // namespace
LayoutProgress::LayoutProgress(HTMLProgressElement& node)
: LayoutBlockFlow(&node),
position_(HTMLProgressElement::kInvalidPosition),
animating_(false),
animation_timer_(
node.GetDocument().GetTaskRunner(TaskType::kInternalDefault),
this,
&LayoutProgress::AnimationTimerFired) {}
LayoutProgress::~LayoutProgress() = default;
void LayoutProgress::WillBeDestroyed() {
NOT_DESTROYED();
if (animating_) {
animation_timer_.Stop();
animating_ = false;
}
LayoutBlockFlow::WillBeDestroyed();
}
void LayoutProgress::UpdateFromElement() {
NOT_DESTROYED();
HTMLProgressElement* element = ProgressElement();
if (position_ == element->position())
return;
position_ = element->position();
UpdateAnimationState();
SetShouldDoFullPaintInvalidation();
LayoutBlockFlow::UpdateFromElement();
}
double LayoutProgress::AnimationProgress() const {
NOT_DESTROYED();
if (!animating_)
return 0;
const base::TimeDelta elapsed =
base::TimeTicks::Now() - animation_start_time_;
return (elapsed % kAnimationDuration) / kAnimationDuration;
}
bool LayoutProgress::IsDeterminate() const {
NOT_DESTROYED();
return (HTMLProgressElement::kIndeterminatePosition != GetPosition() &&
HTMLProgressElement::kInvalidPosition != GetPosition());
}
bool LayoutProgress::IsAnimationTimerActive() const {
NOT_DESTROYED();
return animation_timer_.IsActive();
}
bool LayoutProgress::IsAnimating() const {
NOT_DESTROYED();
return animating_;
}
void LayoutProgress::AnimationTimerFired(TimerBase*) {
NOT_DESTROYED();
SetShouldDoFullPaintInvalidation();
if (!animation_timer_.IsActive() && animating_)
animation_timer_.StartOneShot(kAnimationInterval, FROM_HERE);
}
void LayoutProgress::UpdateAnimationState() {
NOT_DESTROYED();
bool animating = !IsDeterminate() && StyleRef().HasEffectiveAppearance();
if (animating == animating_)
return;
animating_ = animating;
if (animating_) {
animation_start_time_ = base::TimeTicks::Now();
animation_timer_.StartOneShot(kAnimationInterval, FROM_HERE);
} else {
animation_timer_.Stop();
}
}
HTMLProgressElement* LayoutProgress::ProgressElement() const {
NOT_DESTROYED();
return To<HTMLProgressElement>(GetNode());
}
} // namespace blink
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