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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/wm/overview/scoped_overview_animation_settings.h"
#include "ash/wm/overview/overview_animation_type.h"
#include "base/time/time.h"
#include "ui/aura/window.h"
#include "ui/compositor/layer.h"
#include "ui/gfx/animation/tween.h"
namespace ash {
namespace {
// The time duration for transformation animations.
const int kTransitionMilliseconds = 200;
// The time duration for widgets to fade in.
const int kFadeInMilliseconds = 80;
base::TimeDelta GetAnimationDuration(OverviewAnimationType animation_type) {
switch (animation_type) {
case OVERVIEW_ANIMATION_NONE:
return base::TimeDelta();
case OVERVIEW_ANIMATION_ENTER_OVERVIEW_MODE_FADE_IN:
return base::TimeDelta::FromMilliseconds(kFadeInMilliseconds);
case OVERVIEW_ANIMATION_LAY_OUT_SELECTOR_ITEMS:
case OVERVIEW_ANIMATION_RESTORE_WINDOW:
case OVERVIEW_ANIMATION_HIDE_WINDOW:
return base::TimeDelta::FromMilliseconds(kTransitionMilliseconds);
}
NOTREACHED();
return base::TimeDelta();
}
} // namespace
ScopedOverviewAnimationSettings::ScopedOverviewAnimationSettings(
OverviewAnimationType animation_type,
aura::Window* window)
: animation_settings_(window->layer()->GetAnimator()) {
switch (animation_type) {
case OVERVIEW_ANIMATION_NONE:
animation_settings_.SetPreemptionStrategy(
ui::LayerAnimator::REPLACE_QUEUED_ANIMATIONS);
break;
case OVERVIEW_ANIMATION_ENTER_OVERVIEW_MODE_FADE_IN:
window->layer()->GetAnimator()->SchedulePauseForProperties(
GetAnimationDuration(
OverviewAnimationType::OVERVIEW_ANIMATION_LAY_OUT_SELECTOR_ITEMS),
ui::LayerAnimationElement::OPACITY);
animation_settings_.SetPreemptionStrategy(
ui::LayerAnimator::REPLACE_QUEUED_ANIMATIONS);
break;
case OVERVIEW_ANIMATION_LAY_OUT_SELECTOR_ITEMS:
case OVERVIEW_ANIMATION_RESTORE_WINDOW:
animation_settings_.SetPreemptionStrategy(
ui::LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET);
animation_settings_.SetTweenType(gfx::Tween::FAST_OUT_SLOW_IN);
break;
case OVERVIEW_ANIMATION_HIDE_WINDOW:
animation_settings_.SetPreemptionStrategy(
ui::LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET);
break;
}
animation_settings_.SetTransitionDuration(
GetAnimationDuration(animation_type));
}
ScopedOverviewAnimationSettings::~ScopedOverviewAnimationSettings() {
}
// static:
void ScopedOverviewAnimationSettings::SetupFadeInAfterLayout(
aura::Window* window) {
ui::Layer* layer = window->layer();
layer->SetOpacity(0.0f);
ScopedOverviewAnimationSettings animation_settings(
OverviewAnimationType::OVERVIEW_ANIMATION_ENTER_OVERVIEW_MODE_FADE_IN,
window);
layer->SetOpacity(1.0f);
}
} // namespace ash
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