chromium/ui/views/animation/ink_drop.h

// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_VIEWS_ANIMATION_INK_DROP_H_
#define UI_VIEWS_ANIMATION_INK_DROP_H_

#include <memory>

#include "base/functional/callback.h"
#include "base/observer_list.h"
#include "base/scoped_observation.h"
#include "base/time/time.h"
#include "ui/base/metadata/metadata_header_macros.h"
#include "ui/compositor/layer_tree_owner.h"
#include "ui/events/event_handler.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/size.h"
#include "ui/views/animation/ink_drop_state.h"
#include "ui/views/metadata/view_factory.h"
#include "ui/views/view.h"
#include "ui/views/view_observer.h"
#include "ui/views/views_export.h"

namespace views {

class InkDropHost;
class InkDropObserver;
class View;

// Base class that manages the lifetime and state of an ink drop ripple as
// well as visual hover state feedback.
class VIEWS_EXPORT InkDrop { … };

// A View which can be used to parent ink drop layers. Typically this is used
// as a non-ancestor view to labels so that the labels can paint on an opaque
// canvas. This is used to avoid ugly text renderings when labels with subpixel
// rendering enabled are painted onto a non-opaque canvas.
// TODO(pbos): Replace with a function that returns unique_ptr<View>, this only
// calls SetProcessEventsWithinSubtree(false) right now.
class VIEWS_EXPORT InkDropContainerView : public View, public ViewObserver { … };

BEGIN_VIEW_BUILDER(VIEWS_EXPORT, InkDropContainerView, View)
VIEW_BUILDER_PROPERTY(bool, AutoMatchParentBounds)
END_VIEW_BUILDER

}  // namespace views

DEFINE_VIEW_BUILDER(…)

#endif  // UI_VIEWS_ANIMATION_INK_DROP_H_