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// 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.
#import <Cocoa/Cocoa.h>
#include <memory>
#include "base/macros.h"
#include "base/time/time.h"
#include "ui/gfx/animation/animation_delegate.h"
#include "ui/gfx/vector_icon_types.h"
namespace gfx {
class LinearAnimation;
} // namespace gfx
// This class hosts a vector icon that defines transitions. It can be in the
// start steady state, the end steady state, or transitioning in between.
class AnimatedIcon : public gfx::AnimationDelegate {
AnimatedIcon(const gfx::VectorIcon& icon, NSView* host_view);
~AnimatedIcon() override;
void set_color(SkColor color) { color_ = color; }
// Animates the icon. Restart from the beginning if it's already running.
// Virtual for testing.
virtual void Animate();
// Paints the icon on the current drawing context, centered in |frame|.
// Requires a NSGraphicsContext to be present.
void PaintIcon(NSRect frame);
// Returns true if |animation_| is currently animating. Virtual for testing.
virtual bool IsAnimating() const;
// gfx::AnimationDelegate:
void AnimationEnded(const gfx::Animation* animation) override;
void AnimationProgressed(const gfx::Animation* animation) override;
const gfx::VectorIcon& icon_;
// The NSView object that's displaying the icon.
NSView* const host_view_;
// The length of the animation.
const base::TimeDelta duration_;
std::unique_ptr<gfx::LinearAnimation> animation_;
SkColor color_;