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// Copyright 2013 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/base/pointer/pointer_device.h"
#include <algorithm>
#include <functional>
#include <utility>
#include "ui/events/devices/device_data_manager.h"
namespace ui {
namespace {
bool IsTouchDevicePresent() {
return !DeviceDataManager::GetInstance()->GetTouchscreenDevices().empty();
}
bool IsMouseOrTouchpadPresent() {
DeviceDataManager* device_data_manager = DeviceDataManager::GetInstance();
return std::ranges::any_of(device_data_manager->GetTouchpadDevices(),
std::identity(), &InputDevice::enabled) ||
std::ranges::any_of(device_data_manager->GetMouseDevices(),
std::identity(), &InputDevice::enabled) ||
std::ranges::any_of(device_data_manager->GetPointingStickDevices(),
std::identity(), &InputDevice::enabled);
}
} // namespace
std::pair<int, int> GetAvailablePointerAndHoverTypesImpl() {
int pointer_types = IsTouchDevicePresent() ? POINTER_TYPE_COARSE : 0;
int hover_types = HOVER_TYPE_NONE;
if (IsMouseOrTouchpadPresent()) {
pointer_types |= POINTER_TYPE_FINE;
hover_types = HOVER_TYPE_HOVER;
}
return {pointer_types ? pointer_types : POINTER_TYPE_NONE, hover_types};
}
TouchScreensAvailability GetTouchScreensAvailability() {
if (!IsTouchDevicePresent()) {
return TouchScreensAvailability::NONE;
}
return DeviceDataManager::GetInstance()->AreTouchscreensEnabled()
? TouchScreensAvailability::ENABLED
: TouchScreensAvailability::DISABLED;
}
int MaxTouchPoints() {
const std::vector<TouchscreenDevice>& touchscreen_devices =
DeviceDataManager::GetInstance()->GetTouchscreenDevices();
const auto& it = std::ranges::max_element(touchscreen_devices, {},
&TouchscreenDevice::touch_points);
return (it == touchscreen_devices.end()) ? 0 : it->touch_points;
}
} // namespace ui
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