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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/system/progress_indicator/progress_icon_animation.h"
#include "base/memory/ptr_util.h"
#include "ui/gfx/animation/tween.h"
namespace ash {
ProgressIconAnimation::ProgressIconAnimation()
: ProgressIndicatorAnimation(
/*duration=*/base::Milliseconds(400),
/*is_cyclic=*/false) {}
ProgressIconAnimation::~ProgressIconAnimation() = default;
// static
std::unique_ptr<ProgressIconAnimation> ProgressIconAnimation::Create() {
// NOTE: `base::WrapUnique()` is necessary due to constructor visibility.
auto animation = base::WrapUnique(new ProgressIconAnimation());
animation->Init();
return animation;
}
void ProgressIconAnimation::UpdateAnimatableProperties(double fraction) {
// Tween.
fraction = gfx::Tween::CalculateValue(gfx::Tween::Type::ACCEL_20_DECEL_100,
fraction);
// Animatable properties.
inner_icon_translate_y_scale_factor_ =
gfx::Tween::FloatValueBetween(fraction, /*start=*/-0.5f, /*target=*/0.f);
inner_ring_stroke_width_scale_factor_ =
gfx::Tween::FloatValueBetween(fraction, /*start=*/0.f, /*target=*/1.f);
opacity_ = gfx::Tween::FloatValueBetween(std::min(fraction * 2.0, 1.0),
/*start=*/0.f, /*target=*/1.f);
}
} // namespace ash
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