LibGfx: Add Color::from_utf16_string()

Author: https://github.com/gmta
Commit: a9862d60bf
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/5574
Reviewed-by: https://github.com/trflynn89 ✅

Libraries/LibGfx/Color.cpp

@@ -11,6 +11,7 @@
 #include <AK/Optional.h>
 #include <AK/StringConversions.h>
 #include <AK/Swift.h>
+#include <AK/Utf16View.h>
 #include <AK/Vector.h>
 #include <LibGfx/Color.h>
 #include <LibIPC/Decoder.h>
@@ -367,6 +368,11 @@ Optional<Color> Color::from_string(StringView string)
     return {};
 }
 
+Optional<Color> Color::from_utf16_string(Utf16View const& string)
+{
+    return from_string(string.to_utf8_but_should_be_ported_to_utf16());
+}
+
 Vector<Color> Color::shades(u32 steps, float max) const
 {
     float shade = 1.f;

Libraries/LibGfx/Color.h

@@ -491,6 +491,7 @@ public:
     ByteString to_byte_string() const;
     ByteString to_byte_string_without_alpha() const;
     static Optional<Color> from_string(StringView);
+    static Optional<Color> from_utf16_string(Utf16View const&);
     static Optional<Color> from_named_css_color_string(StringView);
 
     constexpr HSV to_hsv() const