LibWeb: Handle scrolling an OutOfProcessWebView

When a mousewheel scroll event isn't handled by the web content
itself (e.g. an overflowed box or similar), the event needs to get
passed back up to the OutOfProcessWebView.

1 files changed, 5 insertions, 0 deletions

diff --git a/Userland/Libraries/LibWeb/OutOfProcessWebView.cpp b/Userland/Libraries/LibWeb/OutOfProcessWebView.cpp
index d237314168..ad736e70f3 100644
--- a/Userland/Libraries/LibWeb/OutOfProcessWebView.cpp
+++ b/Userland/Libraries/LibWeb/OutOfProcessWebView.cpp
@@ -245,6 +245,11 @@ void OutOfProcessWebView::notify_server_did_change_title(Badge<WebContentClient>
         on_title_change(title);
 }
 
+void OutOfProcessWebView::notify_server_did_request_scroll(Badge<WebContentClient>, int wheel_delta)
+{
+    vertical_scrollbar().set_value(vertical_scrollbar().value() + wheel_delta * 20);
+}
+
 void OutOfProcessWebView::notify_server_did_request_scroll_into_view(Badge<WebContentClient>, const Gfx::IntRect& rect)
 {
     scroll_into_view(rect, true, true);