feat: webview2 composition support

src/lib.rs

@@ -1038,7 +1038,8 @@ pub(crate) struct PlatformSpecificWebViewAttributes {
   additional_browser_args: Option<String>,
   browser_accelerator_keys: bool,
   theme: Option<Theme>,
-  use_https: bool,
+  https_scheme: bool,
+  composition: bool,
 }
 
 #[cfg(windows)]
@@ -1048,7 +1049,8 @@ impl Default for PlatformSpecificWebViewAttributes {
       additional_browser_args: None,
       browser_accelerator_keys: true, // This is WebView2's default behavior
       theme: None,
-      use_https: false, // To match macOS & Linux behavior in the context of mixed content.
+      https_scheme: false, // To match macOS & Linux behavior in the context of mixed content.
+      composition: false,
     }
   }
 }
@@ -1085,6 +1087,8 @@ pub trait WebViewBuilderExtWindows {
   ///
   /// The default value is `false`.
   fn with_https_scheme(self, enabled: bool) -> Self;
+
+  fn with_composition(self, enabled: bool) -> Self;
 }
 
 #[cfg(windows)]
@@ -1108,6 +1112,11 @@ impl WebViewBuilderExtWindows for WebViewBuilder<'_> {
     self.platform_specific.use_https = enabled;
     self
   }
+
+  fn with_composition(mut self, enabled: bool) -> Self {
+    self.platform_specific.composition = enabled;
+    self
+  }
 }
 
 #[cfg(target_os = "android")]