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// Copyright 2017 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 "chrome/browser/ui/webui/chromeos/login/oobe_display_chooser.h"
#include <stdint.h>
#include "ash/public/mojom/constants.mojom.h"
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/strings/string_number_conversions.h"
#include "base/task/post_task.h"
#include "chrome/browser/ui/ash/ash_util.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/system_connector.h"
#include "services/service_manager/public/cpp/connector.h"
#include "ui/display/display.h"
#include "ui/display/screen.h"
#include "ui/events/devices/touchscreen_device.h"
using content::BrowserThread;
namespace chromeos {
namespace {
bool TouchSupportAvailable(const display::Display& display) {
return display.touch_support() == display::Display::TouchSupport::AVAILABLE;
}
// TODO(felixe): More context at crbug.com/738885
const uint16_t kDeviceIds[] = {0x0457, 0x266e, 0x222a};
// Returns true if |vendor_id| is a valid vendor id that may be made the primary
// display.
bool IsWhiteListedVendorId(uint16_t vendor_id) {
return base::Contains(kDeviceIds, vendor_id);
}
} // namespace
OobeDisplayChooser::OobeDisplayChooser() {
// |connector| may be null in tests.
auto* connector = content::GetSystemConnector();
if (connector) {
connector->Connect(ash::mojom::kServiceName,
cros_display_config_.BindNewPipeAndPassReceiver());
}
}
OobeDisplayChooser::~OobeDisplayChooser() {}
void OobeDisplayChooser::TryToPlaceUiOnTouchDisplay() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
// Don't (potentially) queue a second task to run MoveToTouchDisplay if one
// already is queued.
if (weak_ptr_factory_.HasWeakPtrs())
return;
display::Display primary_display =
display::Screen::GetScreen()->GetPrimaryDisplay();
if (primary_display.is_valid() && !TouchSupportAvailable(primary_display)) {
base::PostTask(FROM_HERE, {BrowserThread::UI},
base::BindOnce(&OobeDisplayChooser::MaybeMoveToTouchDisplay,
weak_ptr_factory_.GetWeakPtr()));
}
}
void OobeDisplayChooser::MaybeMoveToTouchDisplay() {
ui::DeviceDataManager* device_data_manager =
ui::DeviceDataManager::GetInstance();
if (device_data_manager->AreDeviceListsComplete() &&
device_data_manager->AreTouchscreenTargetDisplaysValid()) {
MoveToTouchDisplay();
} else if (!scoped_observer_.IsObserving(device_data_manager)) {
scoped_observer_.Add(device_data_manager);
}
}
void OobeDisplayChooser::MoveToTouchDisplay() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
scoped_observer_.RemoveAll();
const ui::DeviceDataManager* device_data_manager =
ui::DeviceDataManager::GetInstance();
for (const ui::TouchscreenDevice& device :
device_data_manager->GetTouchscreenDevices()) {
if (IsWhiteListedVendorId(device.vendor_id) &&
device.target_display_id != display::kInvalidDisplayId) {
auto config_properties = ash::mojom::DisplayConfigProperties::New();
config_properties->set_primary = true;
cros_display_config_->SetDisplayProperties(
base::NumberToString(device.target_display_id),
std::move(config_properties), ash::mojom::DisplayConfigSource::kUser,
base::DoNothing());
break;
}
}
}
void OobeDisplayChooser::OnTouchDeviceAssociationChanged() {
MaybeMoveToTouchDisplay();
}
void OobeDisplayChooser::OnInputDeviceConfigurationChanged(
uint8_t input_device_types) {
if (input_device_types & ui::InputDeviceEventObserver::kTouchscreen) {
MaybeMoveToTouchDisplay();
}
}
void OobeDisplayChooser::OnDeviceListsComplete() {
MaybeMoveToTouchDisplay();
}
} // namespace chromeos
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