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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 "base/check_op.h"
#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();
for (const ui::InputDevice& device :
device_data_manager->GetTouchpadDevices()) {
if (device.enabled)
return true;
}
// We didn't find a touchpad then let's look if there is a mouse connected.
for (const ui::InputDevice& device : device_data_manager->GetMouseDevices()) {
if (device.enabled)
return true;
}
// We didn't find a mouse then let's look if there is a pointing stick
// connected.
for (const ui::InputDevice& device :
device_data_manager->GetPointingStickDevices()) {
if (device.enabled) {
return true;
}
}
return false;
}
} // namespace
int GetAvailablePointerTypes() {
int available_pointer_types = 0;
if (IsMouseOrTouchpadPresent())
available_pointer_types |= POINTER_TYPE_FINE;
if (IsTouchDevicePresent())
available_pointer_types |= POINTER_TYPE_COARSE;
if (available_pointer_types == 0)
available_pointer_types = POINTER_TYPE_NONE;
DCHECK(available_pointer_types);
return available_pointer_types;
}
int GetAvailableHoverTypes() {
if (IsMouseOrTouchpadPresent())
return HOVER_TYPE_HOVER;
return HOVER_TYPE_NONE;
}
TouchScreensAvailability GetTouchScreensAvailability() {
if (!IsTouchDevicePresent())
return TouchScreensAvailability::NONE;
return DeviceDataManager::GetInstance()->AreTouchscreensEnabled()
? TouchScreensAvailability::ENABLED
: TouchScreensAvailability::DISABLED;
}
int MaxTouchPoints() {
int max_touch = 0;
const std::vector<ui::TouchscreenDevice>& touchscreen_devices =
ui::DeviceDataManager::GetInstance()->GetTouchscreenDevices();
for (const ui::TouchscreenDevice& device : touchscreen_devices) {
if (device.touch_points > max_touch)
max_touch = device.touch_points;
}
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;
DCHECK_EQ(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;
DCHECK_EQ(available_hover_types, HOVER_TYPE_NONE);
return HOVER_TYPE_NONE;
}
std::optional<PointerDevice> GetPointerDevice(PointerDevice::Key key) {
return std::nullopt;
}
std::vector<PointerDevice> GetPointerDevices() {
return {};
}
} // namespace ui
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