LibGfx+LibWeb+UI: Add OpenHand cursor for CSS grab property

Author: https://github.com/make-42 🔰
Commit: 660bcfa2cd
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/6102
Reviewed-by: https://github.com/gmta ✅

Libraries/LibGfx/Cursor.h

@@ -28,6 +28,7 @@ enum class StandardCursor {
     ResizeRow,
     Hand,
     Help,
+    OpenHand,
     Drag,
     DragCopy,
     Move,

Libraries/LibWeb/Page/EventHandler.cpp

@@ -108,6 +108,7 @@ static Gfx::Cursor resolve_cursor(Layout::NodeWithStyle const& layout_node, Vect
                 case CSS::CursorPredefined::Cell:
                     return Gfx::StandardCursor::Crosshair;
                 case CSS::CursorPredefined::Grab:
+                    return Gfx::StandardCursor::OpenHand;
                 case CSS::CursorPredefined::Grabbing:
                     return Gfx::StandardCursor::Drag;
                 case CSS::CursorPredefined::Pointer:

UI/AppKit/Interface/LadybirdWebView.mm

@@ -417,6 +417,9 @@ static void copy_data_to_clipboard(StringView data, NSPasteboardType pasteboard_
                     // FIXME: AppKit does not have a corresponding cursor, so we should make one.
                     [[NSCursor arrowCursor] set];
                     break;
+                case Gfx::StandardCursor::OpenHand:
+                    [[NSCursor openHandCursor] set];
+                    break;
                 case Gfx::StandardCursor::Drag:
                     [[NSCursor closedHandCursor] set];
                     break;

UI/Qt/WebContentView.cpp

@@ -680,6 +680,9 @@ void WebContentView::update_cursor(Gfx::Cursor cursor)
         case Gfx::StandardCursor::Help:
             setCursor(Qt::WhatsThisCursor);
             break;
+        case Gfx::StandardCursor::OpenHand:
+            setCursor(Qt::OpenHandCursor);
+            break;
         case Gfx::StandardCursor::Drag:
             setCursor(Qt::ClosedHandCursor);
             break;