accessible/src/html/HTMLListAccessible.h

branch
TOR_BUG_9701
changeset 8
97036ab72558
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-1:000000000000 0:f25ad03c60ca
1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
5 * You can obtain one at http://mozilla.org/MPL/2.0/. */
6
7 #ifndef mozilla_a11y_HTMLListAccessible_h__
8 #define mozilla_a11y_HTMLListAccessible_h__
9
10 #include "BaseAccessibles.h"
11 #include "HyperTextAccessibleWrap.h"
12
13 namespace mozilla {
14 namespace a11y {
15
16 class HTMLListBulletAccessible;
17
18 /**
19 * Used for HTML list (like HTML ul).
20 */
21 class HTMLListAccessible : public HyperTextAccessibleWrap
22 {
23 public:
24 HTMLListAccessible(nsIContent* aContent, DocAccessible* aDoc) :
25 HyperTextAccessibleWrap(aContent, aDoc) { mGenericTypes |= eList; }
26 virtual ~HTMLListAccessible() { }
27
28 // nsISupports
29 NS_DECL_ISUPPORTS_INHERITED
30
31 // Accessible
32 virtual a11y::role NativeRole();
33 virtual uint64_t NativeState();
34 };
35
36
37 /**
38 * Used for HTML list item (e.g. HTML li).
39 */
40 class HTMLLIAccessible : public HyperTextAccessibleWrap
41 {
42 public:
43 HTMLLIAccessible(nsIContent* aContent, DocAccessible* aDoc);
44 virtual ~HTMLLIAccessible() { }
45
46 // nsISupports
47 NS_DECL_ISUPPORTS_INHERITED
48
49 // nsIAccessible
50 NS_IMETHOD GetBounds(int32_t* aX, int32_t* aY,
51 int32_t* aWidth, int32_t* aHeight);
52
53 // Accessible
54 virtual void Shutdown();
55 virtual a11y::role NativeRole();
56 virtual uint64_t NativeState();
57
58 // HTMLLIAccessible
59 HTMLListBulletAccessible* Bullet() const { return mBullet; }
60 void UpdateBullet(bool aHasBullet);
61
62 protected:
63 // Accessible
64 virtual void CacheChildren();
65
66 private:
67 nsRefPtr<HTMLListBulletAccessible> mBullet;
68 };
69
70
71 /**
72 * Used for bullet of HTML list item element (for example, HTML li).
73 */
74 class HTMLListBulletAccessible : public LeafAccessible
75 {
76 public:
77 HTMLListBulletAccessible(nsIContent* aContent, DocAccessible* aDoc);
78 virtual ~HTMLListBulletAccessible() { }
79
80 // Accessible
81 virtual nsIFrame* GetFrame() const;
82 virtual ENameValueFlag Name(nsString& aName);
83 virtual a11y::role NativeRole();
84 virtual uint64_t NativeState();
85 virtual void AppendTextTo(nsAString& aText, uint32_t aStartOffset = 0,
86 uint32_t aLength = UINT32_MAX);
87
88 // HTMLListBulletAccessible
89
90 /**
91 * Return true if the bullet is inside of list item element boundaries.
92 */
93 bool IsInside() const;
94 };
95
96
97 inline HTMLLIAccessible*
98 Accessible::AsHTMLListItem()
99 {
100 return IsHTMLListItem() ? static_cast<HTMLLIAccessible*>(this) : nullptr;
101 }
102
103 } // namespace a11y
104 } // namespace mozilla
105
106 #endif

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