LibWeb: Implement IDBOpenDBRequest.onupgradeneeded

Author: https://github.com/jamierocks
Commit: https://github.com/LadybirdBrowser/ladybird/commit/fe3962a64d
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/242
Reviewed-by: https://github.com/AtkinsSJ ✅

Userland/Libraries/LibWeb/HTML/EventNames.h

@@ -111,6 +111,7 @@ namespace Web::HTML::EventNames {
     __ENUMERATE_HTML_EVENT(transitionend)            \
     __ENUMERATE_HTML_EVENT(unhandledrejection)       \
     __ENUMERATE_HTML_EVENT(unload)                   \
+    __ENUMERATE_HTML_EVENT(upgradeneeded)            \
     __ENUMERATE_HTML_EVENT(visibilitychange)         \
     __ENUMERATE_HTML_EVENT(volumechange)             \
     __ENUMERATE_HTML_EVENT(waiting)                  \

Userland/Libraries/LibWeb/IndexedDB/IDBOpenDBRequest.cpp

@@ -39,4 +39,16 @@ WebIDL::CallbackType* IDBOpenDBRequest::onblocked()
     return event_handler_attribute(HTML::EventNames::blocked);
 }
 
+// https://w3c.github.io/IndexedDB/#dom-idbopendbrequest-onupgradeneeded
+void IDBOpenDBRequest::set_onupgradeneeded(WebIDL::CallbackType* event_handler)
+{
+    set_event_handler_attribute(HTML::EventNames::upgradeneeded, event_handler);
+}
+
+// https://w3c.github.io/IndexedDB/#dom-idbopendbrequest-onupgradeneeded
+WebIDL::CallbackType* IDBOpenDBRequest::onupgradeneeded()
+{
+    return event_handler_attribute(HTML::EventNames::upgradeneeded);
+}
+
 }

Userland/Libraries/LibWeb/IndexedDB/IDBOpenDBRequest.h

@@ -21,6 +21,8 @@ public:
 
     void set_onblocked(WebIDL::CallbackType*);
     WebIDL::CallbackType* onblocked();
+    void set_onupgradeneeded(WebIDL::CallbackType*);
+    WebIDL::CallbackType* onupgradeneeded();
 
 protected:
     explicit IDBOpenDBRequest(JS::Realm&);

Userland/Libraries/LibWeb/IndexedDB/IDBOpenDBRequest.idl

@@ -5,5 +5,5 @@
 interface IDBOpenDBRequest : IDBRequest {
     // Event handlers:
     attribute EventHandler onblocked;
-    [FIXME] attribute EventHandler onupgradeneeded;
+    attribute EventHandler onupgradeneeded;
 };