blob: ce3ef0227e417f6e30c5a7ff0b67a3a9f657e315 [file] [log] [blame]
// Copyright 2017 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 <stdint.h>
#include <memory>
#include "ash/ash_export.h"
#include "base/macros.h"
#include "base/time/time.h"
#include "ui/compositor/layer_animation_element.h"
#include "ui/gfx/animation/tween.h"
namespace ui {
class InterpolatedTransform;
} // namespace ui
namespace ash {
// A LayerAnimationElement that will animate a layer by scaling it from 0% to
// 100% (or visa-versa) on the y-axis.
class ASH_EXPORT PinKeyboardAnimation : public ui::LayerAnimationElement {
// Creates an animation element that will grow or shrink the attached layer.
// |height| is the current height of the layer. This is required for proper
// centering.
PinKeyboardAnimation(bool grow,
int height,
base::TimeDelta duration,
gfx::Tween::Type tween_type);
~PinKeyboardAnimation() override;
// ui::LayerAnimationElement:
void OnStart(ui::LayerAnimationDelegate* delegate) override;
bool OnProgress(double current,
ui::LayerAnimationDelegate* delegate) override;
void OnGetTarget(TargetValue* target) const override;
void OnAbort(ui::LayerAnimationDelegate* delegate) override;
// Transform used to scale the target.
std::unique_ptr<ui::InterpolatedTransform> transform_;
gfx::Tween::Type tween_type_;
float start_opacity_ = 0;
float end_opacity_ = 1;
} // namespace ash