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Serenity Operating System
1/*
2 * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this
9 * list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <AK/FlyString.h>
28#include <AK/Function.h>
29#include <LibJS/Interpreter.h>
30#include <LibJS/Runtime/Function.h>
31#include <LibWeb/Bindings/EventListenerWrapper.h>
32#include <LibWeb/Bindings/EventTargetWrapper.h>
33#include <LibWeb/DOM/EventListener.h>
34#include <LibWeb/DOM/EventTarget.h>
35
36namespace Web {
37namespace Bindings {
38
39EventTargetWrapper::EventTargetWrapper(EventTarget& impl)
40 : m_impl(impl)
41{
42 put_native_function("addEventListener", add_event_listener, 2);
43}
44
45EventTargetWrapper::~EventTargetWrapper()
46{
47}
48
49JS::Value EventTargetWrapper::add_event_listener(JS::Interpreter& interpreter)
50{
51 auto* this_object = interpreter.this_value().to_object(interpreter.heap());
52 if (!this_object)
53 return {};
54 auto& arguments = interpreter.call_frame().arguments;
55 if (arguments.size() < 2)
56 return JS::js_undefined();
57 auto event_name = arguments[0].to_string();
58 ASSERT(arguments[1].is_object());
59 ASSERT(arguments[1].as_object().is_function());
60 auto& function = static_cast<JS::Function&>(const_cast<Object&>(arguments[1].as_object()));
61 auto listener = adopt(*new EventListener(JS::make_handle(&function)));
62 static_cast<EventTargetWrapper*>(this_object)->impl().add_event_listener(event_name, move(listener));
63 return JS::js_undefined();
64}
65
66}
67}