dom: Add missing event handlers

Adding:
* global event handlers,
* window event handlers,
* document and element handlers,
* and support for BeforeUnloadEvent.

Signed-off-by: Piotr Stankiewicz <bionicrift@gmail.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/components/script/dom/htmlelement.rs b/components/script/dom/htmlelement.rs
index 3ad8f977869..7e310db8903 100644
--- a/components/script/dom/htmlelement.rs
+++ b/components/script/dom/htmlelement.rs
@@ -137,6 +137,9 @@ impl HTMLElementMethods for HTMLElement {
     // https://html.spec.whatwg.org/multipage/#globaleventhandlers
     global_event_handlers!(NoOnload);
 
+    // https://html.spec.whatwg.org/multipage/#documentandelementeventhandlers
+    document_and_element_event_handlers!();
+
     // https://html.spec.whatwg.org/multipage/#dom-dataset
     fn Dataset(&self) -> Root<DOMStringMap> {
         self.dataset.or_init(|| DOMStringMap::new(self))
@@ -196,6 +199,42 @@ impl HTMLElementMethods for HTMLElement {
         }
     }
 
+    // https://html.spec.whatwg.org/multipage/#handler-onfocus
+    fn GetOnfocus(&self) -> Option<Rc<EventHandlerNonNull>> {
+        if self.is_body_or_frameset() {
+            window_from_node(self).GetOnfocus()
+        } else {
+            self.upcast::<EventTarget>().get_event_handler_common("focus")
+        }
+    }
+
+    // https://html.spec.whatwg.org/multipage/#handler-onfocus
+    fn SetOnfocus(&self, listener: Option<Rc<EventHandlerNonNull>>) {
+        if self.is_body_or_frameset() {
+            window_from_node(self).SetOnfocus(listener)
+        } else {
+            self.upcast::<EventTarget>().set_event_handler_common("focus", listener)
+        }
+    }
+
+    // https://html.spec.whatwg.org/multipage/#handler-onscroll
+    fn GetOnscroll(&self) -> Option<Rc<EventHandlerNonNull>> {
+        if self.is_body_or_frameset() {
+            window_from_node(self).GetOnscroll()
+        } else {
+            self.upcast::<EventTarget>().get_event_handler_common("scroll")
+        }
+    }
+
+    // https://html.spec.whatwg.org/multipage/#handler-onscroll
+    fn SetOnscroll(&self, listener: Option<Rc<EventHandlerNonNull>>) {
+        if self.is_body_or_frameset() {
+            window_from_node(self).SetOnscroll(listener)
+        } else {
+            self.upcast::<EventTarget>().set_event_handler_common("scroll", listener)
+        }
+    }
+
     // https://html.spec.whatwg.org/multipage/#dom-click
     fn Click(&self) {
         if !self.upcast::<Element>().disabled_state() {