refactor: reorganise webview implementations

Author: CodeSchwert

src/Packages/Passport/Runtime/Scripts/Private/UI/AndroidPassportWebView.cs

@@ -14,8 +14,8 @@ namespace Immutable.Passport
 {
     /// <summary>
     /// Android implementation of IPassportWebView using Vuplex WebView
-    /// Provides embedded WebView functionality within the Unity app (not external browser)
-    /// This is different from AndroidPassportWebView which uses external browser for auth flows
+    /// Provides embedded WebView functionality within the Unity app
+    /// Consistent with iOS and macOS Vuplex implementations
     /// </summary>
     public class AndroidVuplexWebView : IPassportWebView
     {
@@ -85,11 +85,27 @@ private async UniTaskVoid InitializeAsync(PassportWebViewConfig config)
                 // Must be child of Canvas for Vuplex to work
                 _webViewPrefab.transform.SetParent(_canvasReference.canvas.transform, false);
 
-                // Set up full-screen layout for Native 2D Mode
+                // Set WebView size based on configuration
                 var rect = _webViewPrefab.GetComponent<RectTransform>();
-                rect.anchorMin = Vector2.zero;
-                rect.anchorMax = Vector2.one;
-                rect.offsetMin = rect.offsetMax = Vector2.zero;
+
+                // Use configured dimensions or fallback to full-screen for Native 2D Mode
+                if (config.Width > 0 && config.Height > 0)
+                {
+                    // Center the WebView with specific dimensions
+                    rect.anchorMin = new Vector2(0.5f, 0.5f);
+                    rect.anchorMax = new Vector2(0.5f, 0.5f);
+                    rect.sizeDelta = new Vector2(config.Width, config.Height);
+                    rect.anchoredPosition = Vector2.zero;
+                    PassportLogger.Info($"{TAG} Using configured dimensions: {config.Width}x{config.Height}");
+                }
+                else
+                {
+                    // Full-screen fallback for Native 2D Mode
+                    rect.anchorMin = Vector2.zero;
+                    rect.anchorMax = Vector2.one;
+                    rect.offsetMin = rect.offsetMax = Vector2.zero;
+                    PassportLogger.Info($"{TAG} Using full-screen dimensions for Native 2D Mode");
+                }
 
                 // Wait for WebView initialization
                 await _webViewPrefab.WaitUntilInitialized();