chromium/third_party/blink/renderer/core/intersection_observer/intersection_geometry.h

// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_INTERSECTION_OBSERVER_INTERSECTION_GEOMETRY_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_INTERSECTION_OBSERVER_INTERSECTION_GEOMETRY_H_

#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/dom/dom_high_res_time_stamp.h"
#include "third_party/blink/renderer/platform/geometry/length.h"
#include "third_party/blink/renderer/platform/heap/collection_support/heap_vector.h"
#include "third_party/blink/renderer/platform/wtf/vector.h"
#include "ui/gfx/geometry/transform.h"
#include "ui/gfx/geometry/vector2d_f.h"

namespace blink {

class Element;
class LayoutBox;
class LayoutObject;
class Node;

// Computes the intersection between an ancestor (root) node and a
// descendant (target) element, with overflow and CSS clipping applied.
// Optionally also checks whether the target is occluded or has visual
// effects applied.
//
// If the root argument to the constructor is null, computes the intersection
// of the target with the top-level frame viewport (AKA the "implicit root").
class CORE_EXPORT IntersectionGeometry { … };

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_INTERSECTION_OBSERVER_INTERSECTION_GEOMETRY_H_