chromium/components/viz/service/hit_test/hit_test_manager.cc

// 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.

#include "components/viz/service/hit_test/hit_test_manager.h"

#include <utility>
#include <vector>

#include "components/viz/common/hit_test/aggregated_hit_test_region.h"
#include "components/viz/service/hit_test/hit_test_aggregator.h"
#include "components/viz/service/surfaces/latest_local_surface_id_lookup_delegate.h"
#include "components/viz/service/surfaces/surface.h"

namespace viz {

namespace {
// TODO(gklassen): Review and select appropriate sizes based on
// telemetry / UMA.
constexpr uint32_t kMaxRegionsPerSurface = …;

// Whenever a hit test region is marked as kHitTestAsk there must be a reason
// for async hit test and vice versa.
bool FlagsAndAsyncReasonsMatch(uint32_t flags,
                               uint32_t async_hit_test_reasons) { … }

}  // namespace

HitTestManager::HitTestManager(SurfaceManager* surface_manager)
    : … { … }

HitTestManager::~HitTestManager() = default;

void HitTestManager::OnSurfaceDestroyed(const SurfaceId& surface_id) { … }

void HitTestManager::OnSurfaceActivated(const SurfaceId& surface_id) { … }

void HitTestManager::SubmitHitTestRegionList(
    const SurfaceId& surface_id,
    const uint64_t frame_index,
    std::optional<HitTestRegionList> hit_test_region_list) { … }

const HitTestRegionList* HitTestManager::GetActiveHitTestRegionList(
    LatestLocalSurfaceIdLookupDelegate* delegate,
    const FrameSinkId& frame_sink_id,
    uint64_t* store_active_frame_index) const { … }

int64_t HitTestManager::GetTraceId(const SurfaceId& id) const { … }

bool HitTestManager::ValidateHitTestRegionList(
    const SurfaceId& surface_id,
    HitTestRegionList* hit_test_region_list) { … }

}  // namespace viz