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
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef MOZILLA_A11Y_OUTERDOCACCESSIBLE_H_
#define MOZILLA_A11Y_OUTERDOCACCESSIBLE_H_
#include "AccessibleWrap.h"
namespace mozilla {
namespace dom {
class BrowserBridgeChild;
}
namespace a11y {
class DocAccessibleParent;
/**
* Used for <browser>, <frame>, <iframe>, <page> or editor> elements.
*
* In these variable names, "outer" relates to the OuterDocAccessible as
* opposed to the DocAccessibleWrap which is "inner". The outer node is
* a something like tags listed above, whereas the inner node corresponds to
* the inner document root.
*/
class OuterDocAccessible final : public AccessibleWrap {
public:
OuterDocAccessible(nsIContent* aContent, DocAccessible* aDoc);
NS_INLINE_DECL_REFCOUNTING_INHERITED(OuterDocAccessible, AccessibleWrap)
DocAccessibleParent* RemoteChildDoc() const;
/**
* For iframes in a content process which will be rendered in another content
* process, tell the parent process about this OuterDocAccessible
* so it can link the trees together when the embedded document is added.
* Note that an OuterDocAccessible can be created before the
* BrowserBridgeChild or vice versa. Therefore, this must be conditionally
* called when either of these is created.
*/
void SendEmbedderAccessible(dom::BrowserBridgeChild* aBridge);
Maybe<nsMargin> GetCrossDocOffset() { return mCrossDocOffset; }
void SetCrossDocOffset(nsMargin aMargin) { mCrossDocOffset = Some(aMargin); }
// LocalAccessible
virtual void Shutdown() override;
virtual mozilla::a11y::role NativeRole() const override;
virtual LocalAccessible* LocalChildAtPoint(
int32_t aX, int32_t aY, EWhichChildAtPoint aWhichChild) override;
virtual bool InsertChildAt(uint32_t aIdx, LocalAccessible* aChild) override;
virtual bool RemoveChild(LocalAccessible* aAccessible) override;
virtual bool IsAcceptableChild(nsIContent* aEl) const override;
virtual uint32_t ChildCount() const override;
// Accessible
virtual Accessible* ChildAt(uint32_t aIndex) const override;
virtual Accessible* ChildAtPoint(int32_t aX, int32_t aY,
EWhichChildAtPoint aWhichChild) override;
protected:
virtual ~OuterDocAccessible() override;
Maybe<nsMargin> mCrossDocOffset;
};
inline OuterDocAccessible* LocalAccessible::AsOuterDoc() {
return IsOuterDoc() ? static_cast<OuterDocAccessible*>(this) : nullptr;
}
} // namespace a11y
} // namespace mozilla
#endif
|
