jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 */
6
7#pragma once
8
9#include <LibWeb/HTML/BrowsingContext.h>
10#include <LibWeb/HTML/HTMLImageElement.h>
11#include <LibWeb/Layout/ReplacedBox.h>
12
13namespace Web::Layout {
14
15class ImageBox final
16 : public ReplacedBox
17 , public HTML::BrowsingContext::ViewportClient {
18 JS_CELL(ImageBox, ReplacedBox);
19
20public:
21 ImageBox(DOM::Document&, DOM::Element&, NonnullRefPtr<CSS::StyleProperties>, ImageLoader const&);
22 virtual ~ImageBox() override;
23
24 virtual void prepare_for_replaced_layout() override;
25
26 const DOM::Element& dom_node() const { return static_cast<const DOM::Element&>(ReplacedBox::dom_node()); }
27
28 bool renders_as_alt_text() const;
29
30 virtual JS::GCPtr<Painting::Paintable> create_paintable() const override;
31
32 auto const& image_loader() const { return m_image_loader; }
33
34 void dom_node_did_update_alt_text(Badge<HTML::HTMLImageElement>);
35
36private:
37 // ^BrowsingContext::ViewportClient
38 virtual void browsing_context_did_set_viewport_rect(CSSPixelRect const&) final;
39
40 // ^JS::Cell
41 virtual void finalize() override;
42
43 int preferred_width() const;
44 int preferred_height() const;
45
46 ImageLoader const& m_image_loader;
47
48 Optional<CSSPixels> m_cached_alt_text_width;
49};
50
51}