LibWeb: Stub out Navigator.maxTouchPoints

Author: https://github.com/shannonbooth
Commit: 144e53a209
Pull-request: https://github.com/SerenityOS/serenity/pull/23935

Userland/Libraries/LibWeb/HTML/Navigator.cpp

@@ -84,4 +84,11 @@ JS::NonnullGCPtr<Clipboard::Clipboard> Navigator::clipboard()
     return *m_clipboard;
 }
 
+// https://w3c.github.io/pointerevents/#dom-navigator-maxtouchpoints
+WebIDL::Long Navigator::max_touch_points()
+{
+    dbgln("FIXME: Unimplemented Navigator.maxTouchPoints");
+    return 0;
+}
+
 }

Userland/Libraries/LibWeb/HTML/Navigator.h

@@ -48,6 +48,8 @@ public:
     [[nodiscard]] JS::NonnullGCPtr<PluginArray> plugins();
     [[nodiscard]] JS::NonnullGCPtr<Clipboard::Clipboard> clipboard();
 
+    static WebIDL::Long max_touch_points();
+
     virtual ~Navigator() override;
 
 protected:

Userland/Libraries/LibWeb/HTML/Navigator.idl

@@ -14,6 +14,9 @@ interface Navigator {
 
     // https://w3c.github.io/clipboard-apis/#navigator-interface
     [SecureContext, SameObject] readonly attribute Clipboard clipboard;
+
+    // https://w3c.github.io/pointerevents/#extensions-to-the-navigator-interface
+    readonly attribute long maxTouchPoints;
 };
 
 // NOTE: As NavigatorContentUtils, NavigatorCookies, NavigatorPlugins, and NavigatorAutomationInformation