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// Copyright 2012 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/app_list/views/pulsing_block_view.h"
#include <stddef.h>
#include <memory>
#include <vector>
#include "ash/style/ash_color_provider.h"
#include "ash/style/dark_light_mode_controller_impl.h"
#include "base/check_op.h"
#include "third_party/skia/include/core/SkColor.h"
#include "ui/compositor/layer.h"
#include "ui/compositor/layer_animation_element.h"
#include "ui/compositor/layer_animation_sequence.h"
#include "ui/compositor/layer_animator.h"
#include "ui/views/animation/animation_builder.h"
#include "ui/views/animation/animation_sequence_block.h"
#include "ui/views/background.h"
#include "ui/views/layout/box_layout.h"
#include "ui/views/layout/fill_layout.h"
namespace {
const base::TimeDelta kPulsingDuration = base::Milliseconds(500);
void SchedulePulsingAnimation(ui::Layer* layer) {
DCHECK(layer);
views::AnimationBuilder()
.SetPreemptionStrategy(
ui::LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET)
.Repeatedly()
.SetDuration(kPulsingDuration)
.SetOpacity(layer, 0.5f, gfx::Tween::FAST_OUT_LINEAR_IN)
.At(kPulsingDuration)
.SetDuration(kPulsingDuration)
.SetOpacity(layer, 1.0f, gfx::Tween::LINEAR);
}
} // namespace
namespace ash {
PulsingBlockView::PulsingBlockView(const gfx::Size& size,
base::TimeDelta animation_delay,
float corner_radius)
: block_size_(size) {
views::BoxLayout* layout_manager =
SetLayoutManager(std::make_unique<views::BoxLayout>(
views::BoxLayout::Orientation::kHorizontal));
layout_manager->set_cross_axis_alignment(
views::BoxLayout::CrossAxisAlignment::kCenter);
layout_manager->set_main_axis_alignment(
views::BoxLayout::MainAxisAlignment::kCenter);
// Stack two views for the same block. The bottom view contains the
// background blur, which will be visible all the time. The top view
// contains the color of the block, which will animate its opacity.
views::View* stacked_views = AddChildView(
views::Builder<views::View>()
.SetVisible(true)
.SetLayoutManager(std::make_unique<views::FillLayout>())
.AddChild(
views::Builder<views::View>()
.CopyAddressTo(&background_color_view_)
.SetEnabled(false)
.SetBackground(views::CreateSolidBackground(
DarkLightModeControllerImpl::Get()->IsDarkModeEnabled()
? SkColorSetA(SK_ColorWHITE, 0x4D)
: SkColorSetA(SK_ColorBLACK, 0x33)))
.SetPreferredSize(block_size_))
.SetPreferredSize(block_size_)
.SetPaintToLayer()
.Build());
stacked_views->layer()->SetMasksToBounds(true);
stacked_views->layer()->SetBackgroundBlur(
ColorProvider::kBackgroundBlurSigma);
stacked_views->layer()->SetBackdropFilterQuality(
ColorProvider::kBackgroundBlurQuality);
stacked_views->layer()->SetRoundedCornerRadius(
{corner_radius, corner_radius, corner_radius, corner_radius});
start_delay_timer_.Start(FROM_HERE, animation_delay, this,
&PulsingBlockView::OnStartDelayTimer);
}
PulsingBlockView::~PulsingBlockView() {}
const char* PulsingBlockView::GetClassName() const {
return "PulsingBlockView";
}
void PulsingBlockView::OnStartDelayTimer() {
background_color_view_->SetPaintToLayer();
background_color_view_->layer()->SetFillsBoundsOpaquely(false);
SchedulePulsingAnimation(background_color_view_->layer());
}
void PulsingBlockView::OnThemeChanged() {
views::View::OnThemeChanged();
if (background_color_view_) {
background_color_view_->SetBackground(views::CreateSolidBackground(
DarkLightModeControllerImpl::Get()->IsDarkModeEnabled()
? SkColorSetA(SK_ColorWHITE, 0x4D)
: SkColorSetA(SK_ColorBLACK, 0x33)));
}
}
bool PulsingBlockView::IsAnimating() {
return background_color_view_->layer() &&
background_color_view_->layer()->GetAnimator()->is_animating();
}
bool PulsingBlockView::FireAnimationTimerForTest() {
if (!start_delay_timer_.IsRunning())
return false;
start_delay_timer_.FireNow();
return true;
}
} // namespace ash
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