jcs.org
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/ByteBuffer.h>
28#include <AK/URL.h>
29#include <LibCore/File.h>
30#include <LibHTML/DOM/Document.h>
31#include <LibHTML/DOM/HTMLLinkElement.h>
32#include <LibHTML/Parser/CSSParser.h>
33#include <LibHTML/ResourceLoader.h>
34
35HTMLLinkElement::HTMLLinkElement(Document& document, const String& tag_name)
36 : HTMLElement(document, tag_name)
37{
38}
39
40HTMLLinkElement::~HTMLLinkElement()
41{
42}
43
44void HTMLLinkElement::inserted_into(Node&)
45{
46 if (rel() == "stylesheet") {
47 URL url = document().complete_url(href());
48 ResourceLoader::the().load(url, [&](auto data) {
49 if (data.is_null()) {
50 dbg() << "HTMLLinkElement: Failed to load stylesheet: " << href();
51 return;
52 }
53 auto sheet = parse_css(data);
54 if (!sheet) {
55 dbg() << "HTMLLinkElement: Failed to parse stylesheet: " << href();
56 return;
57 }
58 document().add_sheet(*sheet);
59 document().update_style();
60 });
61 }
62}