LibWeb: Add a test to ensure "resize" event on VV is fired on pinch-zoom

Author: https://github.com/kalenikaliaksandr
Commit: 0fbadba2e1
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/6430
Reviewed-by: https://github.com/gmta
Reviewed-by: https://github.com/konradekk

Libraries/LibWeb/Internals/Internals.cpp

@@ -224,6 +224,13 @@ void Internals::wheel(double x, double y, double delta_x, double delta_y)
     page.handle_mousewheel(position, position, 0, 0, 0, delta_x, delta_y);
 }
 
+void Internals::pinch(double x, double y, double scale_delta)
+{
+    auto& page = this->page();
+    auto position = page.css_to_device_point({ x, y });
+    page.handle_pinch_event(position, scale_delta);
+}
+
 WebIDL::ExceptionOr<bool> Internals::dispatch_user_activated_event(DOM::EventTarget& target, DOM::Event& event)
 {
     event.set_is_trusted(true);

Libraries/LibWeb/Internals/Internals.h

@@ -41,6 +41,7 @@ public:
     void mouse_down(double x, double y);
     void move_pointer_to(double x, double y);
     void wheel(double x, double y, double delta_x, double delta_y);
+    void pinch(double x, double y, double scale_delta);
 
     WebIDL::ExceptionOr<bool> dispatch_user_activated_event(DOM::EventTarget&, DOM::Event& event);
 

Libraries/LibWeb/Internals/Internals.idl

@@ -33,6 +33,7 @@ interface Internals {
     undefined mouseDown(double x, double y);
     undefined movePointerTo(double x, double y);
     undefined wheel(double x, double y, double deltaX, double deltaY);
+    undefined pinch(double x, double y, double scaleDelta);
 
     boolean dispatchUserActivatedEvent(EventTarget target, Event event);
     undefined spoofCurrentURL(USVString url);