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
72
73
74
75
76
77
78
79
80
81
82
|
/*
* Copyright (c) 2020, the SerenityOS developers.
* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/DOM/ElementFactory.h>
#include <LibWeb/DOM/HTMLCollection.h>
#include <LibWeb/HTML/HTMLTableRowElement.h>
#include <LibWeb/HTML/HTMLTableSectionElement.h>
#include <LibWeb/Namespace.h>
namespace Web::HTML {
HTMLTableSectionElement::HTMLTableSectionElement(DOM::Document& document, DOM::QualifiedName qualified_name)
: HTMLElement(document, move(qualified_name))
{
}
HTMLTableSectionElement::~HTMLTableSectionElement() = default;
// https://html.spec.whatwg.org/multipage/tables.html#dom-tbody-rows
NonnullRefPtr<DOM::HTMLCollection> HTMLTableSectionElement::rows() const
{
// The rows attribute must return an HTMLCollection rooted at this element,
// whose filter matches only tr elements that are children of this element.
// FIXME: This should return the same HTMLCollection object every time,
// but that would cause a reference cycle since HTMLCollection refs the root.
return DOM::HTMLCollection::create(const_cast<HTMLTableSectionElement&>(*this), [this](Element const& element) {
return element.parent() == this
&& is<HTMLTableRowElement>(element);
});
}
// https://html.spec.whatwg.org/multipage/tables.html#dom-tbody-insertrow
DOM::ExceptionOr<NonnullRefPtr<HTMLTableRowElement>> HTMLTableSectionElement::insert_row(long index)
{
auto rows_collection = rows();
auto rows_collection_size = static_cast<long>(rows_collection->length());
// 1. If index is less than −1 or greater than the number of elements in the rows collection, throw an "IndexSizeError" DOMException.
if (index < -1 || index > rows_collection_size)
return DOM::IndexSizeError::create("Index is negative or greater than the number of rows");
// 2. Let table row be the result of creating an element given this element's node document, tr, and the HTML namespace.
auto table_row = static_ptr_cast<HTMLTableRowElement>(DOM::create_element(document(), TagNames::tr, Namespace::HTML));
// 3. If index is −1 or equal to the number of items in the rows collection, then append table row to this element.
if (index == -1 || index == rows_collection_size)
append_child(table_row);
// 4. Otherwise, insert table row as a child of this element, immediately before the index-th tr element in the rows collection.
else
table_row->insert_before(*this, rows_collection->item(index));
// 5. Return table row.
return table_row;
}
// https://html.spec.whatwg.org/multipage/tables.html#dom-tbody-deleterow
DOM::ExceptionOr<void> HTMLTableSectionElement::delete_row(long index)
{
auto rows_collection = rows();
auto rows_collection_size = static_cast<long>(rows_collection->length());
// 1. If index is less than −1 or greater than or equal to the number of elements in the rows collection, then throw an "IndexSizeError" DOMException.
if (index < -1 || index >= rows_collection_size)
return DOM::IndexSizeError::create("Index is negative or greater than or equal to the number of rows");
// 2. If index is −1, then remove the last element in the rows collection from this element, or do nothing if the rows collection is empty.
if (index == -1) {
if (rows_collection_size > 0)
rows_collection->item(rows_collection_size - 1)->remove();
}
// 3. Otherwise, remove the indexth element in the rows collection from this element.
else {
rows_collection->item(index)->remove();
}
return {};
}
}
|
