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// Copyright (C) 2022 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
// based on chromium/ui/base/pointer/pointer_device_linux.cc
// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// 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 <QPointingDevice>
namespace ui {
namespace {
bool IsTouchScreen(const QInputDevice *device)
{
return device->type() & QPointingDevice::DeviceType::TouchScreen;
}
bool IsMouseOrTouchpad(const QInputDevice *device)
{
return device->type()
& (QPointingDevice::DeviceType::TouchPad | QPointingDevice::DeviceType::Mouse);
}
bool IsTouchDevicePresent()
{
QList<const QInputDevice *> devices = QInputDevice::devices();
return std::any_of(devices.constBegin(), devices.constEnd(), IsTouchScreen);
}
bool IsMouseOrTouchpadPresent()
{
QList<const QInputDevice *> devices = QInputDevice::devices();
return std::any_of(devices.constBegin(), devices.constEnd(), IsMouseOrTouchpad);
}
} // namespace
int GetAvailablePointerTypes()
{
int available_pointer_types = POINTER_TYPE_NONE;
if (IsMouseOrTouchpadPresent())
available_pointer_types |= POINTER_TYPE_FINE;
if (IsTouchDevicePresent())
available_pointer_types |= POINTER_TYPE_COARSE;
return available_pointer_types;
}
int GetAvailableHoverTypes()
{
if (IsMouseOrTouchpadPresent())
return HOVER_TYPE_HOVER;
return HOVER_TYPE_NONE;
}
TouchScreensAvailability GetTouchScreensAvailability()
{
if (!IsTouchDevicePresent())
return TouchScreensAvailability::NONE;
return TouchScreensAvailability::ENABLED;
}
int MaxTouchPoints()
{
int max_touch = 0;
for (const auto *device : QInputDevice::devices()) {
if (IsTouchScreen(device)) {
int points = static_cast<const QPointingDevice *>(device)->maximumPoints();
max_touch = points > max_touch ? points : max_touch;
}
}
return max_touch;
}
PointerType GetPrimaryPointerType(int available_pointer_types)
{
if (available_pointer_types & POINTER_TYPE_FINE)
return POINTER_TYPE_FINE;
if (available_pointer_types & POINTER_TYPE_COARSE)
return POINTER_TYPE_COARSE;
Q_ASSERT(available_pointer_types == POINTER_TYPE_NONE);
return POINTER_TYPE_NONE;
}
HoverType GetPrimaryHoverType(int available_hover_types)
{
if (available_hover_types & HOVER_TYPE_HOVER)
return HOVER_TYPE_HOVER;
Q_ASSERT(available_hover_types == HOVER_TYPE_NONE);
return HOVER_TYPE_NONE;
}
} // namespace ui
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