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Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, 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/StringBuilder.h>
28#include <LibJS/Interpreter.h>
29#include <LibJS/Parser.h>
30#include <LibWeb/DOM/Document.h>
31#include <LibWeb/DOM/HTMLScriptElement.h>
32#include <LibWeb/DOM/Text.h>
33#include <LibWeb/ResourceLoader.h>
34
35namespace Web {
36
37HTMLScriptElement::HTMLScriptElement(Document& document, const FlyString& tag_name)
38 : HTMLElement(document, tag_name)
39{
40}
41
42HTMLScriptElement::~HTMLScriptElement()
43{
44}
45
46void HTMLScriptElement::children_changed()
47{
48 HTMLElement::children_changed();
49
50 if (has_attribute("src"))
51 return;
52
53 StringBuilder builder;
54 for_each_child([&](auto& child) {
55 if (is<Text>(child))
56 builder.append(to<Text>(child).text_content());
57 });
58 auto source = builder.to_string();
59 if (source.is_empty())
60 return;
61
62 auto program = JS::Parser(JS::Lexer(source)).parse_program();
63 document().interpreter().run(*program);
64}
65
66void HTMLScriptElement::inserted_into(Node& new_parent)
67{
68 HTMLElement::inserted_into(new_parent);
69
70 auto src = attribute("src");
71 if (src.is_null())
72 return;
73
74 String source;
75 URL src_url = document().complete_url(src);
76 ResourceLoader::the().load_sync(src_url, [&](auto& data) {
77 if (data.is_null()) {
78 dbg() << "HTMLScriptElement: Failed to load " << src;
79 return;
80 }
81 source = String::copy(data);
82 });
83 if (source.is_empty()) {
84 dbg() << "HTMLScriptElement: No source to parse :(";
85 return;
86 }
87
88 auto program = JS::Parser(JS::Lexer(source)).parse_program();
89 document().interpreter().run(*program);
90}
91
92}