/*
 * Copyright (c) 2020, the SerenityOS developers.
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#include <LibWeb/DOM/Document.h>
#include <LibWeb/HTML/HTMLFrameSetElement.h>
#include <LibWeb/HTML/Window.h>

namespace Web::HTML {

HTMLFrameSetElement::HTMLFrameSetElement(DOM::Document& document, DOM::QualifiedName qualified_name)
    : HTMLElement(document, move(qualified_name))
{
}

HTMLFrameSetElement::~HTMLFrameSetElement() = default;

JS::ThrowCompletionOr<void> HTMLFrameSetElement::initialize(JS::Realm& realm)
{
    MUST_OR_THROW_OOM(Base::initialize(realm));
    set_prototype(&Bindings::ensure_web_prototype<Bindings::HTMLFrameSetElementPrototype>(realm, "HTMLFrameSetElement"));

    return {};
}

void HTMLFrameSetElement::parse_attribute(DeprecatedFlyString const& name, DeprecatedString const& value)
{
    HTMLElement::parse_attribute(name, value);

#undef __ENUMERATE
#define __ENUMERATE(attribute_name, event_name)                                                                     \
    if (name == HTML::AttributeNames::attribute_name) {                                                             \
        element_event_handler_attribute_changed(event_name, String::from_deprecated_string(value).release_value()); \
    }
    ENUMERATE_WINDOW_EVENT_HANDLERS(__ENUMERATE)
#undef __ENUMERATE
}

DOM::EventTarget& HTMLFrameSetElement::global_event_handlers_to_event_target(FlyString const& event_name)
{
    // NOTE: This is a little weird, but IIUC document.body.onload actually refers to window.onload
    // NOTE: document.body can return either a HTMLBodyElement or HTMLFrameSetElement, so both these elements must support this mapping.
    if (DOM::is_window_reflecting_body_element_event_handler(event_name))
        return document().window();

    return *this;
}

DOM::EventTarget& HTMLFrameSetElement::window_event_handlers_to_event_target()
{
    // All WindowEventHandlers on HTMLFrameSetElement (e.g. document.body.onrejectionhandled) are mapped to window.on{event}.
    // NOTE: document.body can return either a HTMLBodyElement or HTMLFrameSetElement, so both these elements must support this mapping.
    return document().window();
}

}