fix SimpleViewer WebGL build

Assets/UniGLTF/Runtime/Utils/Plugins/OpenFile.jslib

@@ -1,18 +1,20 @@
 mergeInto(LibraryManager.library, {
-    WebGLFileDialog: function () {
+    WebGLFileDialog: function (_target, _message) {
+        const target = UTF8ToString(_target);
+        const message = UTF8ToString(_message);
         const file_input_id = "file-input";
         var file_input = document.getElementById(file_input_id);
         if (!file_input) {
             file_input = document.createElement('input');
             file_input.setAttribute('type', 'file');
             file_input.setAttribute('id', file_input_id);
-            // file_input.setAttribute('accept', '.vrm')
             file_input.style.visibility = 'hidden';
             file_input.onclick = function (event) {
                 event.target.value = null;
             };
             file_input.onchange = function (event) {
-                SendMessage('Canvas', 'FileSelected', URL.createObjectURL(event.target.files[0]));
+                console.log('SendMessage', target, message);
+                SendMessage(target, message, URL.createObjectURL(event.target.files[0]));
             }
             document.body.appendChild(file_input);
         }

Assets/VRM/Samples~/SimpleViewer/FileDialog/FileUtil.cs

@@ -8,8 +8,8 @@ namespace VRM.SimpleViewer
             return FileDialogForWindows.FileDialog(title, extensions);
 #elif UNITY_WEBGL
             // Open WebGLFileDialog
-            // see: Assets\VRM_Samples\SimpleViewer\Plugins\OpenFile.jslib
-            WebGLUtil.WebGLFileDialog();
+            // see: Assets/UniGLTF/Runtime/Utils/Plugins/OpenFile.jslib
+            WebGLUtil.WebGLFileDialog("Canvas", "FileSelected");
             // Control flow does not return here. return empty string with dummy
             return "";
 #elif UNITY_EDITOR

Assets/VRM/Samples~/SimpleViewer/FileDialog/WebGLUtil.cs

@@ -6,7 +6,7 @@ namespace VRM.SimpleViewer
     public static class WebGLUtil
     {
         [DllImport("__Internal")]
-        public static extern void WebGLFileDialog();
+        public static extern void WebGLFileDialog(string target, string message);
     }
 }
 #endif

Assets/VRM/Samples~/SimpleViewer/ViewerUI.cs

@@ -359,9 +359,9 @@ namespace VRM.SimpleViewer
 
         IEnumerator LoadCoroutine(string url)
         {
-            var www = new UnityEngine.Networking.UnityWebRequest(url);
+            var www = new WWW(url);
             yield return www;
-            var task = LoadBytesAsync("WebGL.vrm", www.downloadHandler.data);
+            var task = LoadBytesAsync("WebGL.vrm", www.bytes);
         }
 
         /// <summary>

Assets/VRM_Samples/SimpleViewer/FileDialog/FileUtil.cs

@@ -9,7 +9,7 @@ namespace VRM.SimpleViewer
 #elif UNITY_WEBGL
             // Open WebGLFileDialog
             // see: Assets\VRM_Samples\SimpleViewer\Plugins\OpenFile.jslib
-            WebGLUtil.WebGLFileDialog();
+            WebGLUtil.WebGLFileDialog("Canvas", "FileSelected");
             // Control flow does not return here. return empty string with dummy
             return "";
 #elif UNITY_EDITOR

Assets/VRM_Samples/SimpleViewer/FileDialog/WebGLUtil.cs

@@ -6,7 +6,7 @@ namespace VRM.SimpleViewer
     public static class WebGLUtil
     {
         [DllImport("__Internal")]
-        public static extern void WebGLFileDialog();
+        public static extern void WebGLFileDialog(string target, string message);
     }
 }
 #endif

Assets/VRM_Samples/SimpleViewer/ViewerUI.cs

@@ -4,7 +4,6 @@ using System.IO;
 using System.Linq;
 using System.Threading.Tasks;
 using UniGLTF;
-using UniGLTF.SpringBoneJobs;
 using UniHumanoid;
 using Unity.Collections;
 using UnityEngine;
@@ -294,8 +293,7 @@ namespace VRM.SimpleViewer
 
         private void Start()
         {
-            m_version.text = string.Format("VRMViewer {0}.{1}",
-                PackageVersion.MAJOR, PackageVersion.MINOR);
+            m_version.text = string.Format("VRMViewer {0}", PackageVersion.VERSION);
             m_open.onClick.AddListener(OnOpenClicked);
 
             m_reset.onClick.AddListener(() => m_loaded?.ResetSpringbone());
@@ -313,6 +311,12 @@ namespace VRM.SimpleViewer
             }
 
             m_texts.Start();
+
+            if (Application.platform == RuntimePlatform.WebGLPlayer)
+            {
+                m_useAsync.isOn = false;
+                m_useAsync.interactable = false;
+            }
         }
 
         private void LoadMotion(string path, string source)
@@ -359,9 +363,9 @@ namespace VRM.SimpleViewer
 
         IEnumerator LoadCoroutine(string url)
         {
-            var www = new UnityEngine.Networking.UnityWebRequest(url);
+            var www = new WWW(url);
             yield return www;
-            var task = LoadBytesAsync("WebGL.vrm", www.downloadHandler.data);
+            var task = LoadBytesAsync("WebGL.vrm", www.bytes);
         }
 
         /// <summary>

ProjectSettings/EditorBuildSettings.asset

@@ -4,4 +4,8 @@
 EditorBuildSettings:
   m_ObjectHideFlags: 0
   serializedVersion: 2
-  m_Scenes: []
+  m_Scenes:
+  - enabled: 1
+    path: Assets/VRM_Samples/SimpleViewer/SimpleViewer.unity
+    guid: 5d0b0ec0bd1cdee4fbd25b64a6d059df
+  m_configObjects: {}