chromium/third_party/blink/renderer/core/intersection_observer/intersection_observation.cc

// 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.

#include "third_party/blink/renderer/core/intersection_observer/intersection_observation.h"

#include "third_party/blink/renderer/core/dom/element_rare_data_vector.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/core/intersection_observer/element_intersection_observer_data.h"
#include "third_party/blink/renderer/core/intersection_observer/intersection_geometry.h"
#include "third_party/blink/renderer/core/intersection_observer/intersection_observer.h"
#include "third_party/blink/renderer/core/intersection_observer/intersection_observer_controller.h"
#include "third_party/blink/renderer/core/intersection_observer/intersection_observer_entry.h"
#include "third_party/blink/renderer/core/layout/hit_test_result.h"
#include "third_party/blink/renderer/core/layout/layout_box.h"
#include "third_party/blink/renderer/core/layout/layout_view.h"
#include "third_party/blink/renderer/core/paint/paint_layer.h"

#define CHECK_SKIPPED_UPDATE_ON_SCROLL() …

namespace blink {

namespace {

Document& TrackingDocument(const IntersectionObservation* observation) { … }

}  // namespace

IntersectionObservation::IntersectionObservation(IntersectionObserver& observer,
                                                 Element& target)
    : … { … }

int64_t IntersectionObservation::ComputeIntersection(
    unsigned compute_flags,
    gfx::Vector2dF accumulated_scroll_delta_since_last_update,
    ComputeIntersectionsContext& context) { … }

void IntersectionObservation::ComputeIntersectionImmediately(
    ComputeIntersectionsContext& context) { … }

gfx::Vector2dF IntersectionObservation::MinScrollDeltaToUpdate() const { … }

void IntersectionObservation::TakeRecords(
    HeapVector<Member<IntersectionObserverEntry>>& entries) { … }

void IntersectionObservation::Disconnect() { … }

void IntersectionObservation::Trace(Visitor* visitor) const { … }

bool IntersectionObservation::CanUseCachedRectsForTesting(
    bool scroll_and_visibility_only) const { … }

bool IntersectionObservation::ShouldCompute(unsigned flags) const { … }

bool IntersectionObservation::MaybeDelayAndReschedule(
    unsigned flags,
    ComputeIntersectionsContext& context) { … }

unsigned IntersectionObservation::GetIntersectionGeometryFlags(
    unsigned compute_flags) const { … }

void IntersectionObservation::ProcessIntersectionGeometry(
    const IntersectionGeometry& geometry,
    ComputeIntersectionsContext& context) { … }

}  // namespace blink