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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 <LibHTML/Dump.h>
28#include <LibHTML/Frame.h>
29#include <LibHTML/Layout/LayoutDocument.h>
30#include <LibHTML/Layout/LayoutImage.h>
31
32LayoutDocument::LayoutDocument(const Document& document, NonnullRefPtr<StyleProperties> style)
33 : LayoutBlock(&document, move(style))
34{
35}
36
37LayoutDocument::~LayoutDocument()
38{
39}
40
41void LayoutDocument::layout()
42{
43 ASSERT(document().frame());
44 rect().set_width(document().frame()->size().width());
45
46 LayoutNode::layout();
47
48 ASSERT(!children_are_inline());
49
50 int lowest_bottom = 0;
51 for_each_child([&](auto& child) {
52 ASSERT(is<LayoutBlock>(child));
53 auto& child_block = to<LayoutBlock>(child);
54 if (child_block.rect().bottom() > lowest_bottom)
55 lowest_bottom = child_block.rect().bottom();
56 });
57 rect().set_bottom(lowest_bottom);
58}
59
60void LayoutDocument::did_set_viewport_rect(Badge<Frame>, const Gfx::Rect& a_viewport_rect)
61{
62 Gfx::FloatRect viewport_rect(a_viewport_rect.x(), a_viewport_rect.y(), a_viewport_rect.width(), a_viewport_rect.height());
63 for_each_in_subtree_of_type<LayoutImage>([&](auto& layout_image) {
64 const_cast<HTMLImageElement&>(layout_image.node()).set_volatile({}, !viewport_rect.intersects(layout_image.rect()));
65 return IterationDecision::Continue;
66 });
67}