🎨 CefGlue Storages

Author: jinzaz

src/Avalonia.WebView2/CefGlue/Controls/WebView2.AvaloniaCefBrowser.EventHandlers.Subscribe.cs

@@ -0,0 +1,23 @@
+#if !(WINDOWS || NETFRAMEWORK) && NET8_0_OR_GREATER && !ANDROID && !IOS
+
+namespace Avalonia.Controls;
+
+partial class WebView2
+{
+    /// <summary>
+    /// 订阅 WebView2 控件的事件处理程序
+    /// </summary>
+    void SubscribeHandlers()
+    {
+        this.LoadStart += OnBrowserLoadStart;
+    }
+
+    /// <summary>
+    /// 取消订阅 WebView2 控件的事件处理程序
+    /// </summary>
+    void UnsubscribeHandlers()
+    {
+        this.LoadStart -= OnBrowserLoadStart;
+    }
+}
+#endif

src/Avalonia.WebView2/CefGlue/Controls/WebView2.AvaloniaCefBrowser.EventHandlers.cs

@@ -0,0 +1,31 @@
+#if !(WINDOWS || NETFRAMEWORK) && NET8_0_OR_GREATER && !ANDROID && !IOS
+
+using Xilium.CefGlue.Common.Events;
+
+namespace Avalonia.Controls;
+
+partial class WebView2
+{
+    void OnBrowserLoadStart(object sender, LoadStartEventArgs e)
+    {
+        try
+        {
+            var contentLoading = ContentLoading;
+            if (contentLoading == null)
+            {
+                return;
+            }
+            contentLoading(this, e);
+        }
+        finally
+        {
+            var requestUri = e.Frame.Url;
+            var js = HandlerStorageServiceGenerateJSString(StorageService, requestUri);
+            if (js != null)
+            {
+                EvaluateJavaScript<object>(js);
+            }
+        }
+    }
+}
+#endif

src/Avalonia.WebView2/CefGlue/Controls/WebView2.AvaloniaCefBrowser.Events.cs

@@ -0,0 +1,15 @@
+#if !(WINDOWS || NETFRAMEWORK) && NET8_0_OR_GREATER && !ANDROID && !IOS
+
+using Xilium.CefGlue.Common.Events;
+
+namespace Avalonia.Controls;
+partial class WebView2
+{
+    /// <summary>
+    /// DOMContentLoaded is raised when the initial HTML document has been parsed.
+    /// </summary><remarks>
+    /// This aligns with the the document's DOMContentLoaded event in HTML.
+    /// </remarks>
+    public event EventHandler<LoadStartEventArgs>? ContentLoading;
+}
+#endif

src/Avalonia.WebView2/CefGlue/Controls/WebView2.cs

@@ -1,8 +1,19 @@
 #if !(WINDOWS || NETFRAMEWORK) && NET8_0_OR_GREATER && !ANDROID && !IOS
 
+using Avalonia.Interactivity;
+
 namespace Avalonia.Controls;
 
 partial class WebView2 : global::Xilium.CefGlue.Avalonia.AvaloniaCefBrowser
 {
+    internal void CefGuleInitialize()
+    {
+        SubscribeHandlers();
+    }
+
+    internal void CefGuleDispose()
+    {
+        UnsubscribeHandlers();
+    }
 }
 #endif

src/Avalonia.WebView2/Controls/WebView2.Disposable.cs

@@ -33,6 +33,11 @@ protected virtual void Dispose(bool disposing)
 #if !DISABLE_WEBVIEW2_CORE && (WINDOWS || NETFRAMEWORK)
                 UnsubscribeHandlersAndCloseController();
 #endif
+
+
+#if !(WINDOWS || NETFRAMEWORK) && NET8_0_OR_GREATER && !ANDROID && !IOS
+                CefGuleDispose();
+#endif
                 _disposables.ForEach(d => d.Dispose());
             }
 

src/Avalonia.WebView2/Controls/WebView2.cs

@@ -25,6 +25,11 @@ public WebView2()
         // 添加控件显示隐藏切时通知 CoreWebView2Controller
         _disposables.Add(this.GetPropertyChangedObservable(IsVisibleProperty).AddClassHandler<WebView2>((t, args) => { IsVisibleChanged(args); }));
         SetDefaultBackgroundColor(_defaultBackgroundColorDefaultValue);
+
+
+#if !(WINDOWS || NETFRAMEWORK) && NET8_0_OR_GREATER && !ANDROID && !IOS
+        CefGuleInitialize();
+#endif
     }
 
     /// <inheritdoc />