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@@ -9,10 +9,14 @@
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#include <LibJS/Parser.h>
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#include <LibJS/Runtime/OrdinaryFunctionObject.h>
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#include <LibWeb/Bindings/ScriptExecutionContext.h>
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+#include <LibWeb/DOM/Document.h>
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#include <LibWeb/DOM/Event.h>
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#include <LibWeb/DOM/EventListener.h>
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#include <LibWeb/DOM/EventTarget.h>
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+#include <LibWeb/DOM/Window.h>
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#include <LibWeb/HTML/EventHandler.h>
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+#include <LibWeb/HTML/HTMLBodyElement.h>
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+#include <LibWeb/HTML/HTMLFrameSetElement.h>
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namespace Web::DOM {
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@@ -73,9 +77,37 @@ ExceptionOr<bool> EventTarget::dispatch_event_binding(NonnullRefPtr<Event> event
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return dispatch_event(event);
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}
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+// https://html.spec.whatwg.org/multipage/webappapis.html#determining-the-target-of-an-event-handler
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+static EventTarget* determine_target_of_event_handler(EventTarget& event_target, FlyString const& name)
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+{
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+ // To determine the target of an event handler, given an EventTarget object eventTarget on which the event handler is exposed,
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+ // and an event handler name name, the following steps are taken:
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+
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+ // 1. If eventTarget is not a body element or a frameset element, then return eventTarget.
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+ if (!is<HTML::HTMLBodyElement>(event_target) && !is<HTML::HTMLFrameSetElement>(event_target))
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+ return &event_target;
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+
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+ auto& event_target_element = static_cast<HTML::HTMLElement&>(event_target);
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+
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+ // FIXME: 2. If name is not the name of an attribute member of the WindowEventHandlers interface mixin and the Window-reflecting
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+ // body element event handler set does not contain name, then return eventTarget.
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+ (void)name;
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+
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+ // 3. If eventTarget's node document is not an active document, then return null.
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+ if (!event_target_element.document().is_active())
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+ return nullptr;
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+
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+ // Return eventTarget's node document's relevant global object.
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+ return &event_target_element.document().window();
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+}
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+
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HTML::EventHandler EventTarget::event_handler_attribute(FlyString const& name)
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{
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- for (auto& listener : listeners()) {
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+ auto target = determine_target_of_event_handler(*this, name);
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+ if (!target)
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+ return {};
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+
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+ for (auto& listener : target->listeners()) {
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if (listener.event_name == name && listener.listener->is_attribute()) {
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return HTML::EventHandler { JS::make_handle(&listener.listener->function()) };
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}
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@@ -85,6 +117,10 @@ HTML::EventHandler EventTarget::event_handler_attribute(FlyString const& name)
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void EventTarget::set_event_handler_attribute(FlyString const& name, HTML::EventHandler value)
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{
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+ auto target = determine_target_of_event_handler(*this, name);
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+ if (!target)
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+ return;
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+
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RefPtr<DOM::EventListener> listener;
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if (!value.callback.is_null()) {
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listener = adopt_ref(*new DOM::EventListener(move(value.callback)));
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@@ -97,18 +133,18 @@ void EventTarget::set_event_handler_attribute(FlyString const& name, HTML::Event
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dbgln("Failed to parse script in event handler attribute '{}'", name);
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return;
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}
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- auto* function = JS::OrdinaryFunctionObject::create(script_execution_context()->interpreter().global_object(), name, program->body(), program->parameters(), program->function_length(), nullptr, JS::FunctionKind::Regular, false, false);
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+ auto* function = JS::OrdinaryFunctionObject::create(target->script_execution_context()->interpreter().global_object(), name, program->body(), program->parameters(), program->function_length(), nullptr, JS::FunctionKind::Regular, false, false);
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VERIFY(function);
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listener = adopt_ref(*new DOM::EventListener(JS::make_handle(static_cast<JS::FunctionObject*>(function))));
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}
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if (listener) {
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- for (auto& registered_listener : listeners()) {
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+ for (auto& registered_listener : target->listeners()) {
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if (registered_listener.event_name == name && registered_listener.listener->is_attribute()) {
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- remove_event_listener(name, registered_listener.listener);
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+ target->remove_event_listener(name, registered_listener.listener);
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break;
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}
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}
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- add_event_listener(name, listener.release_nonnull());
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+ target->add_event_listener(name, listener.release_nonnull());
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}
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}
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}
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Andreas Kling