92 lines
2.7 KiB
C#
92 lines
2.7 KiB
C#
/************************************************************************************
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Copyright : Copyright (c) Facebook Technologies, LLC and its affiliates. All rights reserved.
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Your use of this SDK or tool is subject to the Oculus SDK License Agreement, available at
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https://developer.oculus.com/licenses/oculussdk/
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Unless required by applicable law or agreed to in writing, the Utilities SDK distributed
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under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
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ANY KIND, either express or implied. See the License for the specific language governing
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permissions and limitations under the License.
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************************************************************************************/
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using System;
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using System.Collections.Generic;
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using UnityEngine;
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using UnityEngine.SceneManagement;
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using UnityEngine.Assertions;
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using UnityEngine.Serialization;
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namespace Oculus.Interaction
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{
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/// <summary>
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/// PointerCanvas allows any IPointable to forward its
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/// events onto an associated Canvas via the IPointableCanvas interface
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/// Requires a PointableCanvasModule present in the scene.
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/// </summary>
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public class PointableCanvas : MonoBehaviour, IPointableCanvas
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{
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[SerializeField, Interface(typeof(IPointable))]
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private MonoBehaviour _pointable;
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private IPointable Pointable;
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[SerializeField]
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private Canvas _canvas;
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public Canvas Canvas => _canvas;
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public event Action<PointerArgs> OnPointerEvent = delegate { };
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private bool _registered = false;
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protected bool _started = false;
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protected virtual void Awake()
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{
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Pointable = _pointable as IPointable;
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}
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protected virtual void Start()
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{
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this.BeginStart(ref _started);
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Assert.IsNotNull(Pointable);
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this.EndStart(ref _started);
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}
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private void Register()
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{
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PointableCanvasModule.RegisterPointableCanvas(this);
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Pointable.OnPointerEvent += HandlePointerEvent;
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_registered = true;
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}
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private void Unregister()
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{
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if (!_registered) return;
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Pointable.OnPointerEvent -= HandlePointerEvent;
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PointableCanvasModule.UnregisterPointableCanvas(this);
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_registered = false;
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}
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private void HandlePointerEvent(PointerArgs args)
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{
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OnPointerEvent(args);
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}
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protected virtual void OnEnable()
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{
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if (_started)
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{
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Register();
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}
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}
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protected virtual void OnDisable()
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{
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if (_started)
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{
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Unregister();
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}
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}
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}
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}
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