The Tor Browser / file comparison
comparison: accessible/src/generic/BaseAccessibles.h
accessible/src/generic/BaseAccessibles.h
- branch
- TOR_BUG_9701
- changeset 3
- 141e0f1194b1
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| -1:000000000000 | 0:aa7e6e73d929 |
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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_BaseAccessibles_h__ | |
| 7 #define mozilla_a11y_BaseAccessibles_h__ | |
| 8 | |
| 9 #include "AccessibleWrap.h" | |
| 10 #include "HyperTextAccessibleWrap.h" | |
| 11 | |
| 12 class nsIContent; | |
| 13 | |
| 14 /** | |
| 15 * This file contains a number of classes that are used as base | |
| 16 * classes for the different accessibility implementations of | |
| 17 * the HTML and XUL widget sets. --jgaunt | |
| 18 */ | |
| 19 | |
| 20 namespace mozilla { | |
| 21 namespace a11y { | |
| 22 | |
| 23 /** | |
| 24 * Leaf version of DOM Accessible -- has no children | |
| 25 */ | |
| 26 class LeafAccessible : public AccessibleWrap | |
| 27 { | |
| 28 public: | |
| 29 | |
| 30 LeafAccessible(nsIContent* aContent, DocAccessible* aDoc); | |
| 31 | |
| 32 // nsISupports | |
| 33 NS_DECL_ISUPPORTS_INHERITED | |
| 34 | |
| 35 // Accessible | |
| 36 virtual Accessible* ChildAtPoint(int32_t aX, int32_t aY, | |
| 37 EWhichChildAtPoint aWhichChild); | |
| 38 virtual bool InsertChildAt(uint32_t aIndex, Accessible* aChild) MOZ_OVERRIDE MOZ_FINAL; | |
| 39 virtual bool RemoveChild(Accessible* aChild) MOZ_OVERRIDE MOZ_FINAL; | |
| 40 | |
| 41 protected: | |
| 42 | |
| 43 // Accessible | |
| 44 virtual void CacheChildren(); | |
| 45 }; | |
| 46 | |
| 47 /** | |
| 48 * Used for text or image accessible nodes contained by link accessibles or | |
| 49 * accessibles for nodes with registered click event handler. It knows how to | |
| 50 * report the state of the host link (traveled or not) and can activate (click) | |
| 51 * the host accessible programmatically. | |
| 52 */ | |
| 53 class LinkableAccessible : public AccessibleWrap | |
| 54 { | |
| 55 public: | |
| 56 enum { eAction_Jump = 0 }; | |
| 57 | |
| 58 LinkableAccessible(nsIContent* aContent, DocAccessible* aDoc); | |
| 59 | |
| 60 NS_DECL_ISUPPORTS_INHERITED | |
| 61 | |
| 62 // nsIAccessible | |
| 63 NS_IMETHOD GetActionName(uint8_t aIndex, nsAString& aName); | |
| 64 NS_IMETHOD DoAction(uint8_t index); | |
| 65 NS_IMETHOD TakeFocus(); | |
| 66 | |
| 67 // Accessible | |
| 68 virtual void Shutdown(); | |
| 69 virtual void Value(nsString& aValue); | |
| 70 virtual uint64_t NativeLinkState() const; | |
| 71 | |
| 72 // ActionAccessible | |
| 73 virtual uint8_t ActionCount(); | |
| 74 virtual KeyBinding AccessKey() const; | |
| 75 | |
| 76 // HyperLinkAccessible | |
| 77 virtual already_AddRefed<nsIURI> AnchorURIAt(uint32_t aAnchorIndex); | |
| 78 | |
| 79 protected: | |
| 80 // Accessible | |
| 81 virtual void BindToParent(Accessible* aParent, uint32_t aIndexInParent); | |
| 82 virtual void UnbindFromParent(); | |
| 83 | |
| 84 /** | |
| 85 * Parent accessible that provides an action for this linkable accessible. | |
| 86 */ | |
| 87 Accessible* mActionAcc; | |
| 88 bool mIsLink; | |
| 89 bool mIsOnclick; | |
| 90 }; | |
| 91 | |
| 92 /** | |
| 93 * A simple accessible that gets its enumerated role passed into constructor. | |
| 94 */ | |
| 95 class EnumRoleAccessible : public AccessibleWrap | |
| 96 { | |
| 97 public: | |
| 98 EnumRoleAccessible(nsIContent* aContent, DocAccessible* aDoc, | |
| 99 a11y::role aRole); | |
| 100 virtual ~EnumRoleAccessible() { } | |
| 101 | |
| 102 NS_DECL_ISUPPORTS_INHERITED | |
| 103 | |
| 104 // Accessible | |
| 105 virtual a11y::role NativeRole(); | |
| 106 | |
| 107 protected: | |
| 108 a11y::role mRole; | |
| 109 }; | |
| 110 | |
| 111 | |
| 112 /** | |
| 113 * A wrapper accessible around native accessible to connect it with | |
| 114 * crossplatform accessible tree. | |
| 115 */ | |
| 116 class DummyAccessible : public AccessibleWrap | |
| 117 { | |
| 118 public: | |
| 119 DummyAccessible() : AccessibleWrap(nullptr, nullptr) { } | |
| 120 virtual ~DummyAccessible() { } | |
| 121 | |
| 122 virtual uint64_t NativeState() MOZ_OVERRIDE MOZ_FINAL; | |
| 123 virtual uint64_t NativeInteractiveState() const MOZ_OVERRIDE MOZ_FINAL; | |
| 124 virtual uint64_t NativeLinkState() const MOZ_OVERRIDE MOZ_FINAL; | |
| 125 virtual bool NativelyUnavailable() const MOZ_OVERRIDE MOZ_FINAL; | |
| 126 virtual void ApplyARIAState(uint64_t* aState) const MOZ_OVERRIDE MOZ_FINAL; | |
| 127 }; | |
| 128 | |
| 129 } // namespace a11y | |
| 130 } // namespace mozilla | |
| 131 | |
| 132 #endif |
