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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/ByteBuffer.h>
28#include <LibGfx/Bitmap.h>
29#include <LibGfx/PNGLoader.h>
30#include <LibWeb/CSS/StyleValue.h>
31#include <LibWeb/DOM/Document.h>
32#include <LibWeb/Frame.h>
33#include <LibWeb/ResourceLoader.h>
34
35namespace Web {
36
37StyleValue::StyleValue(Type type)
38 : m_type(type)
39{
40}
41
42StyleValue::~StyleValue()
43{
44}
45
46String IdentifierStyleValue::to_string() const
47{
48 switch (id()) {
49 case CSS::ValueID::Invalid:
50 return "(invalid)";
51 case CSS::ValueID::VendorSpecificLink:
52 return "-libhtml-link";
53 default:
54 ASSERT_NOT_REACHED();
55 }
56}
57
58Color IdentifierStyleValue::to_color(const Document& document) const
59{
60 if (id() == CSS::ValueID::VendorSpecificLink)
61 return document.link_color();
62 return {};
63}
64
65ImageStyleValue::ImageStyleValue(const URL& url, Document& document)
66 : StyleValue(Type::Image)
67 , m_url(url)
68 , m_document(document.make_weak_ptr())
69{
70 NonnullRefPtr<ImageStyleValue> protector(*this);
71 ResourceLoader::the().load(url, [this, protector](auto& data) {
72 if (!m_document)
73 return;
74 m_bitmap = Gfx::load_png_from_memory(data.data(), data.size());
75 if (!m_bitmap)
76 return;
77 // FIXME: Do less than a full repaint if possible?
78 if (m_document->frame())
79 m_document->frame()->set_needs_display({});
80 });
81}
82
83}