1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/accessible/src/generic/BaseAccessibles.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,132 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef mozilla_a11y_BaseAccessibles_h__
1.10 +#define mozilla_a11y_BaseAccessibles_h__
1.11 +
1.12 +#include "AccessibleWrap.h"
1.13 +#include "HyperTextAccessibleWrap.h"
1.14 +
1.15 +class nsIContent;
1.16 +
1.17 +/**
1.18 + * This file contains a number of classes that are used as base
1.19 + * classes for the different accessibility implementations of
1.20 + * the HTML and XUL widget sets. --jgaunt
1.21 + */
1.22 +
1.23 +namespace mozilla {
1.24 +namespace a11y {
1.25 +
1.26 +/**
1.27 + * Leaf version of DOM Accessible -- has no children
1.28 + */
1.29 +class LeafAccessible : public AccessibleWrap
1.30 +{
1.31 +public:
1.32 +
1.33 + LeafAccessible(nsIContent* aContent, DocAccessible* aDoc);
1.34 +
1.35 + // nsISupports
1.36 + NS_DECL_ISUPPORTS_INHERITED
1.37 +
1.38 + // Accessible
1.39 + virtual Accessible* ChildAtPoint(int32_t aX, int32_t aY,
1.40 + EWhichChildAtPoint aWhichChild);
1.41 + virtual bool InsertChildAt(uint32_t aIndex, Accessible* aChild) MOZ_OVERRIDE MOZ_FINAL;
1.42 + virtual bool RemoveChild(Accessible* aChild) MOZ_OVERRIDE MOZ_FINAL;
1.43 +
1.44 +protected:
1.45 +
1.46 + // Accessible
1.47 + virtual void CacheChildren();
1.48 +};
1.49 +
1.50 +/**
1.51 + * Used for text or image accessible nodes contained by link accessibles or
1.52 + * accessibles for nodes with registered click event handler. It knows how to
1.53 + * report the state of the host link (traveled or not) and can activate (click)
1.54 + * the host accessible programmatically.
1.55 + */
1.56 +class LinkableAccessible : public AccessibleWrap
1.57 +{
1.58 +public:
1.59 + enum { eAction_Jump = 0 };
1.60 +
1.61 + LinkableAccessible(nsIContent* aContent, DocAccessible* aDoc);
1.62 +
1.63 + NS_DECL_ISUPPORTS_INHERITED
1.64 +
1.65 + // nsIAccessible
1.66 + NS_IMETHOD GetActionName(uint8_t aIndex, nsAString& aName);
1.67 + NS_IMETHOD DoAction(uint8_t index);
1.68 + NS_IMETHOD TakeFocus();
1.69 +
1.70 + // Accessible
1.71 + virtual void Shutdown();
1.72 + virtual void Value(nsString& aValue);
1.73 + virtual uint64_t NativeLinkState() const;
1.74 +
1.75 + // ActionAccessible
1.76 + virtual uint8_t ActionCount();
1.77 + virtual KeyBinding AccessKey() const;
1.78 +
1.79 + // HyperLinkAccessible
1.80 + virtual already_AddRefed<nsIURI> AnchorURIAt(uint32_t aAnchorIndex);
1.81 +
1.82 +protected:
1.83 + // Accessible
1.84 + virtual void BindToParent(Accessible* aParent, uint32_t aIndexInParent);
1.85 + virtual void UnbindFromParent();
1.86 +
1.87 + /**
1.88 + * Parent accessible that provides an action for this linkable accessible.
1.89 + */
1.90 + Accessible* mActionAcc;
1.91 + bool mIsLink;
1.92 + bool mIsOnclick;
1.93 +};
1.94 +
1.95 +/**
1.96 + * A simple accessible that gets its enumerated role passed into constructor.
1.97 + */
1.98 +class EnumRoleAccessible : public AccessibleWrap
1.99 +{
1.100 +public:
1.101 + EnumRoleAccessible(nsIContent* aContent, DocAccessible* aDoc,
1.102 + a11y::role aRole);
1.103 + virtual ~EnumRoleAccessible() { }
1.104 +
1.105 + NS_DECL_ISUPPORTS_INHERITED
1.106 +
1.107 + // Accessible
1.108 + virtual a11y::role NativeRole();
1.109 +
1.110 +protected:
1.111 + a11y::role mRole;
1.112 +};
1.113 +
1.114 +
1.115 +/**
1.116 + * A wrapper accessible around native accessible to connect it with
1.117 + * crossplatform accessible tree.
1.118 + */
1.119 +class DummyAccessible : public AccessibleWrap
1.120 +{
1.121 +public:
1.122 + DummyAccessible() : AccessibleWrap(nullptr, nullptr) { }
1.123 + virtual ~DummyAccessible() { }
1.124 +
1.125 + virtual uint64_t NativeState() MOZ_OVERRIDE MOZ_FINAL;
1.126 + virtual uint64_t NativeInteractiveState() const MOZ_OVERRIDE MOZ_FINAL;
1.127 + virtual uint64_t NativeLinkState() const MOZ_OVERRIDE MOZ_FINAL;
1.128 + virtual bool NativelyUnavailable() const MOZ_OVERRIDE MOZ_FINAL;
1.129 + virtual void ApplyARIAState(uint64_t* aState) const MOZ_OVERRIDE MOZ_FINAL;
1.130 +};
1.131 +
1.132 +} // namespace a11y
1.133 +} // namespace mozilla
1.134 +
1.135 +#endif
