127 lines
5.1 KiB
C#
127 lines
5.1 KiB
C#
#if UNITY_EDITOR && UNITY_2021_1_OR_NEWER
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using System;
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using System.Collections.Generic;
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using UnityEditor.DeviceSimulation;
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using UnityEngine.InputSystem.LowLevel;
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namespace UnityEngine.InputSystem.Editor
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{
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internal class InputSystemPlugin : DeviceSimulatorPlugin
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{
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internal Touchscreen SimulatorTouchscreen;
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private bool m_InputSystemEnabled;
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private bool m_Quitting;
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private List<InputDevice> m_DisabledDevices;
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public override string title => "Input System";
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public override void OnCreate()
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{
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m_InputSystemEnabled = EditorPlayerSettingHelpers.newSystemBackendsEnabled;
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if (m_InputSystemEnabled)
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{
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// Monitor whether the editor is quitting to avoid risking unsafe EnableDevice while quitting
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UnityEditor.EditorApplication.quitting += OnQuitting;
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m_DisabledDevices = new List<InputDevice>();
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// deviceSimulator is never null when the plugin is instantiated by a simulator window, but it can be null during unit tests
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if (deviceSimulator != null)
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deviceSimulator.touchScreenInput += OnTouchEvent;
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InputSystem.onDeviceChange += OnDeviceChange;
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// UGUI elements like a button don't get pressed when multiple pointers for example mouse and touchscreen are sending data at the same time
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foreach (var device in InputSystem.devices)
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{
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DisableConflictingDevice(device);
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}
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SimulatorTouchscreen = InputSystem.AddDevice<Touchscreen>("Device Simulator Touchscreen");
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}
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}
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internal void OnTouchEvent(TouchEvent touchEvent)
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{
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// Input System does not accept 0 as id
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var id = touchEvent.touchId + 1;
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InputSystem.QueueStateEvent(SimulatorTouchscreen,
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new TouchState
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{
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touchId = id,
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phase = ToInputSystem(touchEvent.phase),
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position = touchEvent.position
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});
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}
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private void DisableConflictingDevice(InputDevice device)
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{
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if (device.native && (device is Mouse || device is Pen) && device.enabled)
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{
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InputSystem.DisableDevice(device);
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m_DisabledDevices.Add(device);
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}
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}
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private void OnDeviceChange(InputDevice device, InputDeviceChange change)
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{
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if (change == InputDeviceChange.Added || change == InputDeviceChange.Reconnected)
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DisableConflictingDevice(device);
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}
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private static UnityEngine.InputSystem.TouchPhase ToInputSystem(UnityEditor.DeviceSimulation.TouchPhase original)
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{
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switch (original)
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{
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case UnityEditor.DeviceSimulation.TouchPhase.Began:
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return UnityEngine.InputSystem.TouchPhase.Began;
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case UnityEditor.DeviceSimulation.TouchPhase.Moved:
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return UnityEngine.InputSystem.TouchPhase.Moved;
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case UnityEditor.DeviceSimulation.TouchPhase.Ended:
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return UnityEngine.InputSystem.TouchPhase.Ended;
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case UnityEditor.DeviceSimulation.TouchPhase.Canceled:
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return UnityEngine.InputSystem.TouchPhase.Canceled;
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case UnityEditor.DeviceSimulation.TouchPhase.Stationary:
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return UnityEngine.InputSystem.TouchPhase.Stationary;
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default:
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throw new ArgumentOutOfRangeException(nameof(original), original, "Unexpected value");
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}
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}
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public override void OnDestroy()
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{
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if (m_InputSystemEnabled)
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{
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// deviceSimulator is never null when the plugin is instantiated by a simulator window, but it can be null during unit tests
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if (deviceSimulator != null)
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deviceSimulator.touchScreenInput -= OnTouchEvent;
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InputSystem.onDeviceChange -= OnDeviceChange;
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UnityEditor.EditorApplication.quitting -= OnQuitting;
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if (SimulatorTouchscreen != null)
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InputSystem.RemoveDevice(SimulatorTouchscreen);
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foreach (var device in m_DisabledDevices)
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{
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// Note that m_Quitting is used here to mitigate the problem reported in issue tracker:
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// https://issuetracker.unity3d.com/product/unity/issues/guid/UUM-10774.
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// Enabling a device will call into IOCTL of backend which will (may) be destroyed prior
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// to this callback on Unity version <= 2022.2. This is not a fix for the actual problem
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// of shutdown order but a package fix to mitigate this problem.
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if (device.added && !m_Quitting)
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InputSystem.EnableDevice(device);
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}
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}
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}
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private void OnQuitting()
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{
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m_Quitting = true;
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}
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}
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}
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#endif
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