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
|
// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/modules/accessibility/ax_media_element.h"
#include "third_party/blink/public/strings/grit/blink_strings.h"
#include "third_party/blink/renderer/core/html/media/html_media_element.h"
#include "third_party/blink/renderer/core/layout/layout_object.h"
#include "third_party/blink/renderer/modules/accessibility/ax_object-inl.h"
#include "third_party/blink/renderer/platform/text/platform_locale.h"
namespace blink {
AXObject* AccessibilityMediaElement::Create(
LayoutObject* layout_object,
AXObjectCacheImpl& ax_object_cache) {
DCHECK(layout_object->GetNode());
DCHECK(IsA<HTMLMediaElement>(layout_object->GetNode()));
return MakeGarbageCollected<AccessibilityMediaElement>(layout_object,
ax_object_cache);
}
AccessibilityMediaElement::AccessibilityMediaElement(
LayoutObject* layout_object,
AXObjectCacheImpl& ax_object_cache)
: AXNodeObject(layout_object, ax_object_cache) {}
String AccessibilityMediaElement::TextAlternative(
bool recursive,
const AXObject* aria_label_or_description_root,
AXObjectSet& visited,
ax::mojom::NameFrom& name_from,
AXRelatedObjectVector* related_objects,
NameSources* name_sources) const {
if (IsDetached())
return String();
if (IsUnplayable()) {
auto* element = To<HTMLMediaElement>(GetNode());
return element->GetLocale().QueryString(IDS_MEDIA_PLAYBACK_ERROR);
}
return AXNodeObject::TextAlternative(
recursive, aria_label_or_description_root, visited, name_from,
related_objects, name_sources);
}
bool AccessibilityMediaElement::CanHaveChildren() const {
return true;
}
AXRestriction AccessibilityMediaElement::Restriction() const {
if (IsUnplayable())
return kRestrictionDisabled;
return AXNodeObject::Restriction();
}
bool AccessibilityMediaElement::IsUnplayable() const {
if (IsDetached())
return true;
auto* element = To<HTMLMediaElement>(GetNode());
HTMLMediaElement::NetworkState network_state = element->getNetworkState();
return (element->error() ||
network_state == HTMLMediaElement::kNetworkEmpty ||
network_state == HTMLMediaElement::kNetworkNoSource);
}
} // namespace blink
|
