using System.Collections.Generic; using System.Runtime.InteropServices; using Unity.UIWidgets.external.simplejson; using Unity.UIWidgets.foundation; using UnityEngine; namespace Unity.UIWidgets.engine { public class UIWidgetsMessageManager: MonoBehaviour { public delegate void MethodChannelMessageDelegate(string method, List args); static UIWidgetsMessageManager _instance; readonly Dictionary _methodChannelMessageDelegates = new Dictionary(); public static UIWidgetsMessageManager instance { get { return _instance; } } internal static void ensureUIWidgetsMessageManagerIfNeeded() { if (!Application.isPlaying) { return; } if (_instance != null) { return; } var managerObj = new GameObject("__UIWidgetsMessageManager"); managerObj.AddComponent(); } #if UNITY_IOS || UNITY_ANDROID || UNITY_WEBGL string _lastObjectName; #endif void OnEnable() { D.assert(_instance == null, () => "Only one instance of UIWidgetsMessageManager should exists"); _instance = this; UpdateNameIfNeed(); } void OnDisable() { D.assert(_instance != null, () => "_instance should not be null"); _instance = null; } void Update() { UpdateNameIfNeed(); } void UpdateNameIfNeed() { #if UNITY_IOS || UNITY_ANDROID || UNITY_WEBGL var name = this.gameObject.name; if (name != this._lastObjectName) { if (!Application.isEditor) { UIWidgetsMessageSetObjectName(name); } this._lastObjectName = name; } #endif } public void AddChannelMessageDelegate(string channel, MethodChannelMessageDelegate del) { MethodChannelMessageDelegate exists; _methodChannelMessageDelegates.TryGetValue(channel, out exists); _methodChannelMessageDelegates[channel] = exists + del; } public void RemoveChannelMessageDelegate(string channel, MethodChannelMessageDelegate del) { MethodChannelMessageDelegate exists; _methodChannelMessageDelegates.TryGetValue(channel, out exists); if (exists != null) { _methodChannelMessageDelegates[channel] = exists - del; } } void OnUIWidgetsMethodMessage(string message) { JSONObject jsonObject = (JSONObject)JSON.Parse(message); string channel = jsonObject["channel"].Value; string method = jsonObject["method"].Value; var args = new List(jsonObject["args"].AsArray.Children); if (string.IsNullOrEmpty(channel) || string.IsNullOrEmpty(method)) { Debug.LogError("invalid uiwidgets method message"); } else { MethodChannelMessageDelegate exists; _methodChannelMessageDelegates.TryGetValue(channel, out exists); exists?.Invoke(method, args); } } #if UNITY_IOS || UNITY_WEBGL [DllImport("__Internal")] static extern void UIWidgetsMessageSetObjectName(string objectName); #elif UNITY_ANDROID static void UIWidgetsMessageSetObjectName(string objectName) { using ( AndroidJavaClass managerClass = new AndroidJavaClass("com.unity.uiwidgets.plugin.UIWidgetsMessageManager") ) { using ( AndroidJavaObject managerInstance = managerClass.CallStatic("getInstance") ) { managerInstance.Call("SetObjectName", objectName); } } } #endif } }