ladybird/Ladybird/ConsoleGlobalObject.cpp

/*
 * Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
 * Copyright (c) 2022, Andreas Kling <atkinssj@serenityos.org>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#include "ConsoleGlobalObject.h"
#include <LibJS/Runtime/Completion.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/HTML/Window.h>

namespace Ladybird {

ConsoleGlobalObject::ConsoleGlobalObject(JS::Realm& realm, Web::HTML::Window& parent_object)
    : JS::GlobalObject(realm)
    , m_window_object(&parent_object)
{
}

JS::ThrowCompletionOr<void> ConsoleGlobalObject::initialize(JS::Realm& realm)
{
    MUST_OR_THROW_OOM(Base::initialize(realm));

    // $0 magic variable
    define_native_accessor(realm, "$0", inspected_node_getter, nullptr, 0);

    return {};
}

void ConsoleGlobalObject::visit_edges(Visitor& visitor)
{
    Base::visit_edges(visitor);
    visitor.visit(m_window_object);
}

JS::ThrowCompletionOr<JS::Object*> ConsoleGlobalObject::internal_get_prototype_of() const
{
    return m_window_object->internal_get_prototype_of();
}

JS::ThrowCompletionOr<bool> ConsoleGlobalObject::internal_set_prototype_of(JS::Object* prototype)
{
    return m_window_object->internal_set_prototype_of(prototype);
}

JS::ThrowCompletionOr<bool> ConsoleGlobalObject::internal_is_extensible() const
{
    return m_window_object->internal_is_extensible();
}

JS::ThrowCompletionOr<bool> ConsoleGlobalObject::internal_prevent_extensions()
{
    return m_window_object->internal_prevent_extensions();
}

JS::ThrowCompletionOr<Optional<JS::PropertyDescriptor>> ConsoleGlobalObject::internal_get_own_property(JS::PropertyKey const& property_name) const
{
    if (auto result = TRY(m_window_object->internal_get_own_property(property_name)); result.has_value())
        return result;

    return Base::internal_get_own_property(property_name);
}

JS::ThrowCompletionOr<bool> ConsoleGlobalObject::internal_define_own_property(JS::PropertyKey const& property_name, JS::PropertyDescriptor const& descriptor)
{
    return m_window_object->internal_define_own_property(property_name, descriptor);
}

JS::ThrowCompletionOr<bool> ConsoleGlobalObject::internal_has_property(JS::PropertyKey const& property_name) const
{
    return TRY(Object::internal_has_property(property_name)) || TRY(m_window_object->internal_has_property(property_name));
}

JS::ThrowCompletionOr<JS::Value> ConsoleGlobalObject::internal_get(JS::PropertyKey const& property_name, JS::Value receiver) const
{
    if (TRY(m_window_object->has_own_property(property_name)))
        return m_window_object->internal_get(property_name, (receiver == this) ? m_window_object : receiver);

    return Base::internal_get(property_name, receiver);
}

JS::ThrowCompletionOr<bool> ConsoleGlobalObject::internal_set(JS::PropertyKey const& property_name, JS::Value value, JS::Value receiver)
{
    return m_window_object->internal_set(property_name, value, (receiver == this) ? m_window_object : receiver);
}

JS::ThrowCompletionOr<bool> ConsoleGlobalObject::internal_delete(JS::PropertyKey const& property_name)
{
    return m_window_object->internal_delete(property_name);
}

JS::ThrowCompletionOr<JS::MarkedVector<JS::Value>> ConsoleGlobalObject::internal_own_property_keys() const
{
    return m_window_object->internal_own_property_keys();
}

JS_DEFINE_NATIVE_FUNCTION(ConsoleGlobalObject::inspected_node_getter)
{
    auto* this_object = TRY(vm.this_value().to_object(vm));

    if (!is<ConsoleGlobalObject>(this_object))
        return vm.throw_completion<JS::TypeError>(JS::ErrorType::NotAnObjectOfType, "ConsoleGlobalObject");

    auto console_global_object = static_cast<ConsoleGlobalObject*>(this_object);
    auto& window = *console_global_object->m_window_object;
    auto* inspected_node = window.associated_document().inspected_node();
    if (!inspected_node)
        return JS::js_undefined();

    return &*inspected_node;
}

}