/src/mozilla-central/accessible/html/HTMLImageMapAccessible.h
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1 | | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
2 | | /* This Source Code Form is subject to the terms of the Mozilla Public |
3 | | * License, v. 2.0. If a copy of the MPL was not distributed with this |
4 | | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
5 | | |
6 | | #ifndef mozilla_a11y_HTMLImageMapAccessible_h__ |
7 | | #define mozilla_a11y_HTMLImageMapAccessible_h__ |
8 | | |
9 | | #include "HTMLLinkAccessible.h" |
10 | | #include "ImageAccessibleWrap.h" |
11 | | |
12 | | namespace mozilla { |
13 | | namespace a11y { |
14 | | |
15 | | /** |
16 | | * Used for HTML image maps. |
17 | | */ |
18 | | class HTMLImageMapAccessible final : public ImageAccessibleWrap |
19 | | { |
20 | | public: |
21 | | HTMLImageMapAccessible(nsIContent* aContent, DocAccessible* aDoc); |
22 | | |
23 | | // nsISupports and cycle collector |
24 | | NS_INLINE_DECL_REFCOUNTING_INHERITED(HTMLImageMapAccessible, |
25 | | ImageAccessibleWrap) |
26 | | |
27 | | // Accessible |
28 | | virtual a11y::role NativeRole() const override; |
29 | | |
30 | | // HyperLinkAccessible |
31 | | virtual uint32_t AnchorCount() override; |
32 | | virtual Accessible* AnchorAt(uint32_t aAnchorIndex) override; |
33 | | virtual already_AddRefed<nsIURI> AnchorURIAt(uint32_t aAnchorIndex) const override; |
34 | | |
35 | | /** |
36 | | * Update area children of the image map. |
37 | | */ |
38 | | void UpdateChildAreas(bool aDoFireEvents = true); |
39 | | |
40 | | /** |
41 | | * Return accessible of child node. |
42 | | */ |
43 | | Accessible* GetChildAccessibleFor(const nsINode* aNode) const; |
44 | | |
45 | | protected: |
46 | 0 | virtual ~HTMLImageMapAccessible() { } |
47 | | }; |
48 | | |
49 | | /** |
50 | | * Accessible for image map areas - must be child of image. |
51 | | */ |
52 | | class HTMLAreaAccessible final : public HTMLLinkAccessible |
53 | | { |
54 | | public: |
55 | | |
56 | | HTMLAreaAccessible(nsIContent* aContent, DocAccessible* aDoc); |
57 | | |
58 | | // Accessible |
59 | | virtual void Description(nsString& aDescription) override; |
60 | | virtual Accessible* ChildAtPoint(int32_t aX, int32_t aY, |
61 | | EWhichChildAtPoint aWhichChild) override; |
62 | | virtual nsRect RelativeBounds(nsIFrame** aBoundingFrame) const override; |
63 | | |
64 | | // HyperLinkAccessible |
65 | | virtual uint32_t StartOffset() override; |
66 | | virtual uint32_t EndOffset() override; |
67 | | |
68 | | virtual bool IsAcceptableChild(nsIContent* aEl) const override |
69 | 0 | { return false; } |
70 | | |
71 | | protected: |
72 | | // Accessible |
73 | | virtual ENameValueFlag NativeName(nsString& aName) const override; |
74 | | }; |
75 | | |
76 | | |
77 | | //////////////////////////////////////////////////////////////////////////////// |
78 | | // Accessible downcasting method |
79 | | |
80 | | inline HTMLImageMapAccessible* |
81 | | Accessible::AsImageMap() |
82 | 0 | { |
83 | 0 | return IsImageMap() ? static_cast<HTMLImageMapAccessible*>(this) : nullptr; |
84 | 0 | } |
85 | | |
86 | | } // namespace a11y |
87 | | } // namespace mozilla |
88 | | |
89 | | #endif |