Add query support

Example/Example.csproj

@@ -10,7 +10,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>

Example/Program.cs

@@ -9,5 +9,17 @@ btn.Click += (sender,e)=>{
     btn.Text = $"Clicked {++i} time(s)";
 };
 ui.Publish("/",btn);
-
+ui.Publish("/query",(ctx)=>{
+    Ooui.List list=new List();
+    foreach(var item in ctx.QueryParams)
+    {
+        foreach(var v in item.Value)
+        {
+            Ooui.ListItem listItem=new ListItem();
+            listItem.Text = $"{item.Key}: {v}";
+            list.AppendChild(listItem);
+        }
+    }
+    return list;
+});
 ui.StartServer(45252);

Ooui/Client.js

@@ -125,7 +125,7 @@ function connectWebSocket() {
     saveSize (initialSize);
 
     var wsArgs = (rootElementPath.indexOf("?") >= 0 ? "&" : "?") +
-        "w=" + initialSize.width + "&h=" + initialSize.height;
+        "w=" + initialSize.width + "&h=" + initialSize.height + window.location.search.replace('?','&');
 
     var proto = "ws";
     if (location.protocol == "https:") {

Ooui/UI.cs

@@ -489,6 +489,7 @@ namespace Ooui
             bool disposeElementWhenDone = true;
             try {
                 var context = UIContext.ForListenerContext (listenerContext, variables);
+                context.QueryParams = listenerContext.QueryParams;
                 element = elementHandler.GetElement (context);
                 disposeElementWhenDone = elementHandler.DisposeElementWhenDone;
 
@@ -609,6 +610,7 @@ namespace Ooui
 
     public class UIContext
     {
+        public Dictionary<string,List<string>> QueryParams {get;set;}=new Dictionary<string, List<string>>();
         readonly Dictionary<string, string> variables = new Dictionary<string, string> ();
 
         public string RequestUrl { get; }