chromium/components/input/passthrough_touch_event_queue.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/input/passthrough_touch_event_queue.h"

#include <memory>
#include <string>
#include <utility>

#include "base/auto_reset.h"
#include "base/metrics/field_trial_params.h"
#include "base/trace_event/trace_event.h"
#include "base/trace_event/typed_macros.h"
#include "components/input/touch_timeout_handler.h"
#include "components/input/web_touch_event_traits.h"
#include "ui/events/base_event_utils.h"
#include "ui/gfx/geometry/point_f.h"

WebInputEvent;
WebTouchEvent;
WebTouchPoint;
LatencyInfo;

namespace input {
namespace {

// Compare all properties of touch points to determine the state.
bool HasPointChanged(const WebTouchPoint& point_1,
                     const WebTouchPoint& point_2) { … }

}  // namespace

PassthroughTouchEventQueue::Config::Config() = default;
PassthroughTouchEventQueue::Config::~Config() = default;
PassthroughTouchEventQueue::Config::Config(
    const PassthroughTouchEventQueue::Config& other) = default;

// static
const base::FeatureParam<std::string>
    PassthroughTouchEventQueue::kSkipTouchEventFilterType{ … };

PassthroughTouchEventQueue::TouchEventWithLatencyInfoAndAckState::
    TouchEventWithLatencyInfoAndAckState(
        const TouchEventWithLatencyInfo& event)
    : … { … }

PassthroughTouchEventQueue::PassthroughTouchEventQueue(
    PassthroughTouchEventQueueClient* client,
    const Config& config)
    : … { … }

PassthroughTouchEventQueue::~PassthroughTouchEventQueue() { … }

void PassthroughTouchEventQueue::SendTouchCancelEventForTouchEvent(
    const TouchEventWithLatencyInfo& event_to_cancel) { … }

void PassthroughTouchEventQueue::QueueEvent(
    const TouchEventWithLatencyInfo& event) { … }

void PassthroughTouchEventQueue::PrependTouchScrollNotification() { … }

void PassthroughTouchEventQueue::ProcessTouchAck(
    blink::mojom::InputEventResultSource ack_source,
    blink::mojom::InputEventResultState ack_result,
    const LatencyInfo& latency_info,
    const uint32_t unique_touch_event_id,
    bool should_stop_timeout_monitor) { … }

void PassthroughTouchEventQueue::OnGestureEventAck(
    const GestureEventWithLatencyInfo& event,
    blink::mojom::InputEventResultState ack_result) { … }

void PassthroughTouchEventQueue::OnHasTouchEventHandlers(bool has_handlers) { … }

bool PassthroughTouchEventQueue::IsPendingAckTouchStart() const { … }

void PassthroughTouchEventQueue::SetAckTimeoutEnabled(bool enabled) { … }

void PassthroughTouchEventQueue::SetIsMobileOptimizedSite(
    bool mobile_optimized_site) { … }

bool PassthroughTouchEventQueue::IsAckTimeoutEnabled() const { … }

bool PassthroughTouchEventQueue::Empty() const { … }

void PassthroughTouchEventQueue::FlushQueue() { … }

void PassthroughTouchEventQueue::StopTimeoutMonitor() { … }

void PassthroughTouchEventQueue::AckCompletedEvents() { … }

void PassthroughTouchEventQueue::AckTouchEventToClient(
    const TouchEventWithLatencyInfo& acked_event,
    blink::mojom::InputEventResultSource ack_source,
    blink::mojom::InputEventResultState ack_result) { … }

void PassthroughTouchEventQueue::SendTouchEventImmediately(
    TouchEventWithLatencyInfo* touch,
    bool wait_for_ack) { … }

PassthroughTouchEventQueue::PreFilterResult
PassthroughTouchEventQueue::FilterBeforeForwarding(const WebTouchEvent& event) { … }

bool PassthroughTouchEventQueue::ShouldFilterForEvent(
    const blink::WebTouchEvent& event) { … }

PassthroughTouchEventQueue::PreFilterResult
PassthroughTouchEventQueue::FilterBeforeForwardingImpl(
    const WebTouchEvent& event) { … }

void PassthroughTouchEventQueue::UpdateTouchConsumerStates(
    const WebTouchEvent& event,
    blink::mojom::InputEventResultState ack_result) { … }

size_t PassthroughTouchEventQueue::SizeForTesting() const { … }

bool PassthroughTouchEventQueue::IsTimeoutRunningForTesting() const { … }

}  // namespace input