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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/ozone/platform/wayland/host/wayland_serial_tracker.h"
#include <optional>
#include <sstream>
#include <vector>
#include "base/containers/contains.h"
#include "base/containers/fixed_flat_map.h"
#include "base/time/time.h"
namespace wl {
SerialTracker::SerialTracker()
: base_time_(base::TimeTicks::Now()),
serials_(base::MakeFixedFlatMap<SerialType, std::optional<Serial>>({
{SerialType::kMouseEnter, std::nullopt},
{SerialType::kMousePress, std::nullopt},
{SerialType::kTouchPress, std::nullopt},
{SerialType::kKeyPress, std::nullopt},
})) {}
SerialTracker::~SerialTracker() = default;
void SerialTracker::UpdateSerial(SerialType type, uint32_t serial) {
DCHECK(base::Contains(serials_, type));
serials_.at(type) = {.value = serial,
.type = type,
.timestamp = base::TimeTicks::Now() - base_time_};
}
void SerialTracker::ResetSerial(SerialType type) {
DCHECK(base::Contains(serials_, type));
serials_.at(type) = std::nullopt;
}
std::optional<Serial> SerialTracker::GetSerial(SerialType type) const {
DCHECK(base::Contains(serials_, type));
return serials_.at(type);
}
std::optional<Serial> SerialTracker::GetSerial(
const std::vector<SerialType>& types) const {
DCHECK(!types.empty());
std::optional<Serial> most_recent;
for (const auto& type : types) {
if (auto serial = GetSerial(type)) {
if (!most_recent || serial->timestamp > most_recent->timestamp)
most_recent = serial;
}
}
return most_recent;
}
void SerialTracker::ClearForTesting() {
ResetSerial(SerialType::kMouseEnter);
ResetSerial(SerialType::kMousePress);
ResetSerial(SerialType::kTouchPress);
ResetSerial(SerialType::kKeyPress);
}
std::string SerialTracker::ToString() const {
auto tostring = [this](const SerialType serial_type, const std::string& label,
std::ostringstream& out) {
auto serial = GetSerial(serial_type);
out << label;
if (!serial) {
out << "<none>";
} else {
out << "tracker_id=" << serial->value << ", time=" << serial->timestamp;
};
};
std::ostringstream out;
tostring(SerialType::kMouseEnter, "mouse_enter: ", out);
tostring(SerialType::kMousePress, ", mouse_press: ", out);
tostring(SerialType::kTouchPress, ", touch_press: ", out);
tostring(SerialType::kKeyPress, ", key_press: ", out);
return out.str();
}
} // namespace wl
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