1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
/*
* Copyright (c) 2020, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/DOM/Document.h>
#include <LibWeb/DOM/Node.h>
#include <LibWeb/DOM/Range.h>
#include <LibWeb/DOM/Window.h>
namespace Web::DOM {
NonnullRefPtr<Range> Range::create(Window& window)
{
return Range::create(window.associated_document());
}
NonnullRefPtr<Range> Range::create(Document& document)
{
return adopt_ref(*new Range(document));
}
NonnullRefPtr<Range> Range::create(Node& start_container, size_t start_offset, Node& end_container, size_t end_offset)
{
return adopt_ref(*new Range(start_container, start_offset, end_container, end_offset));
}
NonnullRefPtr<Range> Range::create_with_global_object(Bindings::WindowObject& window)
{
return Range::create(window.impl());
}
Range::Range(Document& document)
: Range(document, 0, document, 0)
{
}
Range::Range(Node& start_container, size_t start_offset, Node& end_container, size_t end_offset)
: m_start_container(start_container)
, m_start_offset(start_offset)
, m_end_container(end_container)
, m_end_offset(end_offset)
{
}
NonnullRefPtr<Range> Range::clone_range() const
{
return adopt_ref(*new Range(const_cast<Node&>(*m_start_container), m_start_offset, const_cast<Node&>(*m_end_container), m_end_offset));
}
NonnullRefPtr<Range> Range::inverted() const
{
return adopt_ref(*new Range(const_cast<Node&>(*m_end_container), m_end_offset, const_cast<Node&>(*m_start_container), m_start_offset));
}
NonnullRefPtr<Range> Range::normalized() const
{
if (m_start_container.ptr() == m_end_container.ptr()) {
if (m_start_offset <= m_end_offset)
return clone_range();
return inverted();
}
if (m_start_container->is_before(m_end_container))
return clone_range();
return inverted();
}
}
|
