chromium/chrome/browser/ui/views/tabs/glow_hover_controller.h

// 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.

#ifndef CHROME_BROWSER_UI_VIEWS_TABS_GLOW_HOVER_CONTROLLER_H_
#define CHROME_BROWSER_UI_VIEWS_TABS_GLOW_HOVER_CONTROLLER_H_

#include "base/memory/raw_ptr.h"
#include "chrome/browser/ui/tabs/tab_style.h"
#include "ui/gfx/animation/slide_animation.h"
#include "ui/views/animation/animation_delegate_views.h"

namespace gfx {
class Point;
}

namespace views {
class View;
}

// GlowHoverController is responsible for drawing a hover effect as is used by
// the tabstrip. Typical usage:
//   OnMouseEntered() -> invoke Show().
//   OnMouseMoved()   -> invoke SetLocation().
//   OnMouseExited()  -> invoke Hide().
//   OnPaint()        -> if ShouldDraw() returns true invoke Draw().
// Internally GlowHoverController uses an animation to animate the glow and
// invokes SchedulePaint() back on the View as necessary.
class GlowHoverController : public views::AnimationDelegateViews { … };

#endif  // CHROME_BROWSER_UI_VIEWS_TABS_GLOW_HOVER_CONTROLLER_H_