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/*
* Copyright © Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "mir_test_framework/input_device_faker.h"
#include "mir_test_framework/stub_server_platform_factory.h"
#include "mir_test_framework/fake_input_device.h"
#include "mir/test/signal_actions.h"
#include <mir/input/input_device_hub.h>
#include <mir/input/input_device_observer.h>
#include <mir/raii.h>
#include <mir/server.h>
#include <gtest/gtest.h>
#include <chrono>
auto mir_test_framework::InputDeviceFaker::add_fake_input_device(mir::input::InputDeviceInfo const& info) -> mir::UniqueModulePtr<FakeInputDevice>
{
auto result = mir_test_framework::add_fake_input_device(info);
++expected_number_of_input_devices;
return result;
}
void mir_test_framework::InputDeviceFaker::wait_for_input_devices_added_to(mir::Server& server)
{
using namespace std::chrono_literals;
using namespace testing;
struct DeviceCounter : mir::input::InputDeviceObserver
{
DeviceCounter(std::function<void(size_t)> const& callback)
: callback{callback}
{}
void device_added(std::shared_ptr<mir::input::Device> const&) override { ++count_devices; }
void device_changed(std::shared_ptr<mir::input::Device> const&) override {}
void device_removed(std::shared_ptr<mir::input::Device> const&) override { --count_devices; }
void changes_complete() override { callback(count_devices); }
std::function<void(size_t)> const callback;
int count_devices{0};
};
mir::test::Signal devices_available;
// The fake input devices are registered from within the input thread, as soon as the
// input manager starts. So clients may connect to the server before those additions
// have been processed.
auto counter = std::make_shared<DeviceCounter>(
[&](int count)
{
if (count == expected_number_of_input_devices)
devices_available.raise();
});
auto hub = server.the_input_device_hub();
auto const register_counter = mir::raii::paired_calls(
[&]{ hub->add_observer(counter); },
[&]{ hub->remove_observer(counter); });
devices_available.wait_for(5s);
ASSERT_THAT(counter->count_devices, Eq(expected_number_of_input_devices));
}
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