chromium/components/input/touch_timeout_handler.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/touch_timeout_handler.h"

#include <utility>

#include "base/auto_reset.h"
#include "base/functional/bind.h"
#include "base/metrics/histogram_macros.h"
#include "base/trace_event/trace_event.h"
#include "base/trace_event/typed_macros.h"
#include "components/input/passthrough_touch_event_queue.h"
#include "ui/events/base_event_utils.h"
#include "ui/gfx/geometry/point_f.h"

WebInputEvent;
WebTouchEvent;
WebTouchPoint;
LatencyInfo;

namespace input {
namespace {

bool ShouldTouchTriggerTimeout(const WebTouchEvent& event) { … }

}  // namespace

TouchTimeoutHandler::TouchTimeoutHandler(
    PassthroughTouchEventQueue* touch_queue,
    base::TimeDelta desktop_timeout_delay,
    base::TimeDelta mobile_timeout_delay,
    scoped_refptr<base::SequencedTaskRunner> task_runner)
    : … { … }

TouchTimeoutHandler::~TouchTimeoutHandler() { … }

void TouchTimeoutHandler::StartIfNecessary(
    const TouchEventWithLatencyInfo& event) { … }

bool TouchTimeoutHandler::ConfirmTouchEvent(
    uint32_t unique_touch_event_id,
    blink::mojom::InputEventResultState ack_result,
    bool should_stop_timeout_monitor) { … }

bool TouchTimeoutHandler::FilterEvent(const WebTouchEvent& event) { … }

void TouchTimeoutHandler::StopTimeoutMonitor() { … }

void TouchTimeoutHandler::SetEnabled(bool enabled) { … }

void TouchTimeoutHandler::SetUseMobileTimeout(bool use_mobile_timeout) { … }

void TouchTimeoutHandler::OnTimeOut() { … }

// Skip a cancel event if the timed-out event had no consumer and was the
// initial event in the gesture.
bool TouchTimeoutHandler::AckedTimeoutEventRequiresCancel(
    blink::mojom::InputEventResultState ack_result) const { … }

void TouchTimeoutHandler::SetPendingAckState(
    PendingAckState new_pending_ack_state) { … }

void TouchTimeoutHandler::LogSequenceStartForUMA() { … }

void TouchTimeoutHandler::LogSequenceEndForUMAIfNecessary(bool timed_out) { … }

base::TimeDelta TouchTimeoutHandler::GetTimeoutDelay() const { … }

bool TouchTimeoutHandler::HasTimeoutEvent() const { … }

}  // namespace input