chromium/third_party/blink/renderer/core/animation/view_timeline.h

// Copyright 2017 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_ANIMATION_VIEW_TIMELINE_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_ANIMATION_VIEW_TIMELINE_H_

#include "base/time/time.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_typedefs.h"
#include "third_party/blink/renderer/core/animation/scroll_timeline.h"
#include "third_party/blink/renderer/core/animation/timeline_inset.h"
#include "third_party/blink/renderer/core/animation/timeline_range.h"
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/layout/layout_box.h"
#include "third_party/blink/renderer/platform/bindings/script_wrappable.h"

namespace blink {

class ViewTimelineOptions;

// Implements the ViewTimeline from the Scroll-linked Animations spec.
//
// A ViewTimeline is a special form of ScrollTimeline in which the start and
// end scroll offsets are derived based on relative offset of the subject view
// within the source scroll container.
//
// TODO(crbug.com/1329159): Update link once rewrite replaces the draft version.
// https://drafts.csswg.org/scroll-animations-1/rewrite#viewtimeline-interface
class CORE_EXPORT ViewTimeline : public ScrollTimeline { … };

template <>
struct DowncastTraits<ViewTimeline> { … };

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_ANIMATION_VIEW_TIMELINE_H_