WPF - IME Transparent Text Background (#3143)

* The background color of ime text has been changed to transparent.

* added static methods on imehandler for set background color or underline color through wpfimekeyboardhandler constructor.

* changed codes for a pull request

* removed unused a method

* clean up codes

Co-authored-by: 노연진(Roh Yeonjin)(nyjin) <[email protected]>

Author: 2 people

CefSharp.Wpf.Example/Views/BrowserTabView.xaml.cs

@@ -29,6 +29,15 @@ public BrowserTabView()
 
             //browser.BrowserSettings.BackgroundColor = Cef.ColorSetARGB(0, 255, 255, 255);
 
+            //Please remove the comments below to use the Experimental WpfImeKeyboardHandler.
+            //browser.WpfKeyboardHandler = new WpfImeKeyboardHandler(browser);
+
+            //Please remove the comments below to specify the color of the CompositionUnderline.
+            //var transparent = Colors.Transparent;
+            //var black = Colors.Black;
+            //ImeHandler.ColorBKCOLOR = Cef.ColorSetARGB(transparent.A, transparent.R, transparent.G, transparent.B);
+            //ImeHandler.ColorUNDERLINE = Cef.ColorSetARGB(black.A, black.R, black.G, black.B);
+
             browser.RequestHandler = new ExampleRequestHandler();
 
             var bindingOptions = new BindingOptions()

CefSharp.Wpf/Internals/IMEHandler.cs

@@ -15,9 +15,9 @@ namespace CefSharp.Wpf.Internals
     public static class ImeHandler
     {
         // Black SkColor value for underline.
-        internal const uint ColorUNDERLINE = 0xFF000000;
+        public static uint ColorUNDERLINE = 0xFF000000;
         // White SkColor value for background.
-        internal const uint ColorBKCOLOR = 0xFFFFFFFF;
+        public static uint ColorBKCOLOR = 0xFFFFFFFF;
 
         public static bool GetResult(IntPtr hwnd, uint lParam, out string text)
         {