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
|
// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/accessibility/platform/child_iterator_base.h"
#include "ui/accessibility/platform/ax_platform_node.h"
namespace ui {
ChildIteratorBase::ChildIteratorBase(const AXPlatformNodeDelegate* parent,
size_t index)
: parent_(parent), index_(index) {
DCHECK(parent);
DCHECK_LE(index, parent->GetChildCount());
}
ChildIteratorBase::ChildIteratorBase(const ChildIteratorBase& it)
: parent_(it.parent_), index_(it.index_) {
DCHECK(parent_);
}
ChildIteratorBase& ChildIteratorBase::operator++() {
index_++;
return *this;
}
ChildIteratorBase ChildIteratorBase::operator++(int) {
ChildIteratorBase previous_state = *this;
index_++;
return previous_state;
}
ChildIteratorBase& ChildIteratorBase::operator--() {
DCHECK_GT(index_, 0u);
index_--;
return *this;
}
ChildIteratorBase ChildIteratorBase::operator--(int) {
DCHECK_GT(index_, 0u);
ChildIteratorBase previous_state = *this;
index_--;
return previous_state;
}
gfx::NativeViewAccessible ChildIteratorBase::GetNativeViewAccessible() const {
if (index_ < parent_->GetChildCount()) {
return parent_->ChildAtIndex(index_);
}
return gfx::NativeViewAccessible();
}
std::optional<size_t> ChildIteratorBase::GetIndexInParent() const {
return index_;
}
AXPlatformNodeDelegate* ChildIteratorBase::get() const {
AXPlatformNode* platform_node =
AXPlatformNode::FromNativeViewAccessible(GetNativeViewAccessible());
return platform_node ? platform_node->GetDelegate() : nullptr;
}
AXPlatformNodeDelegate& ChildIteratorBase::operator*() const {
AXPlatformNode* platform_node =
AXPlatformNode::FromNativeViewAccessible(GetNativeViewAccessible());
DCHECK(platform_node);
return *(platform_node->GetDelegate());
}
AXPlatformNodeDelegate* ChildIteratorBase::operator->() const {
return get();
}
} // namespace ui
|
