RDEV-9063 - Add BackgroundColor and VideoAutoplay to CefSettings (#398)

* Add BackgroundColor to CefSettings

Signed-off-by: Russell Camo <jrcc1023@gmail.com>

* Add EnableVideoAutoplay property to GlobalSettings

Signed-off-by: Russell Camo <jrcc1023@gmail.com>

---------

Signed-off-by: Russell Camo <jrcc1023@gmail.com>

Author: russkyc

WebViewControl/GlobalSettings.cs

@@ -1,14 +1,17 @@
 using System;
 using System.Collections.Generic;
+using System.Drawing;
 using System.IO;
 using Xilium.CefGlue.Common;
 
 namespace WebViewControl {
 
     public class GlobalSettings {
 
+        private Color backgroundColor = Color.White;
         private bool persistCache;
         private bool enableErrorLogOnly;
+        private bool enableVideoAutoplay = false; 
         private bool osrEnabled = false;
         private string userAgent;
         private string logFile;
@@ -25,6 +28,14 @@ public void AddCommandLineSwitch(string key, string value) {
 
         public IEnumerable<KeyValuePair<string, string>> CommandLineSwitches => commandLineSwitches;
 
+        public Color BackgroundColor {
+            get => backgroundColor;
+            set {
+                EnsureNotLoaded(nameof(BackgroundColor));
+                backgroundColor = value;
+            }
+        }
+
         public string CachePath {
             get => cachePath;
             set {
@@ -78,6 +89,19 @@ public bool OsrEnabled {
             }
         }
 
+        /// <summary>
+        /// Set to true to enable video autoplay without requiring user interaction.
+        /// This allows muted videos with the autoplay attribute to play automatically.
+        /// Default is false for security and user experience considerations.
+        /// </summary>
+        public bool EnableVideoAutoplay {
+            get => enableVideoAutoplay;
+            set {
+                EnsureNotLoaded(nameof(EnableVideoAutoplay));
+                enableVideoAutoplay = value;
+            }
+        }
+
         private void EnsureNotLoaded(string propertyName) {
             if (CefRuntimeLoader.IsLoaded) {
                 throw new InvalidOperationException($"Cannot set {propertyName} after WebView engine has been loaded");

WebViewControl/WebViewLoader.cs

@@ -37,7 +37,8 @@ public static void Initialize(GlobalSettings settings) {
                 CachePath = settings.CachePath, // enable cache for external resources to speedup loading
                 WindowlessRenderingEnabled = settings.OsrEnabled,
                 RemoteDebuggingPort = settings.GetRemoteDebuggingPort(),
-                UserAgent = settings.UserAgent
+                UserAgent = settings.UserAgent,
+                BackgroundColor = new CefColor((uint)settings.BackgroundColor.ToArgb())
             };
 
             var customSchemes = CustomSchemes.Select(s => new CustomScheme() {
@@ -46,7 +47,11 @@ public static void Initialize(GlobalSettings settings) {
             }).ToArray();
 
             settings.AddCommandLineSwitch("enable-experimental-web-platform-features", null);
-
+            
+            if (settings.EnableVideoAutoplay) {
+                settings.AddCommandLineSwitch("autoplay-policy", "no-user-gesture-required");
+            }
+            
             CefRuntimeLoader.Initialize(settings: cefSettings, flags: settings.CommandLineSwitches.ToArray(), customSchemes: customSchemes);
 
             AppDomain.CurrentDomain.ProcessExit += delegate { Cleanup(); };