зеркало из https://github.com/mozilla/gecko-dev.git
113 строки
3.3 KiB
C++
113 строки
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef __NS_MAI_H__
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#define __NS_MAI_H__
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#include <atk/atk.h>
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#include <glib.h>
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#include <glib-object.h>
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#include "AccessibleWrap.h"
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namespace mozilla {
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namespace a11y {
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class RemoteAccessible;
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class Accessible;
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} // namespace a11y
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} // namespace mozilla
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#define MAI_TYPE_ATK_OBJECT (mai_atk_object_get_type())
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#define MAI_ATK_OBJECT(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj), MAI_TYPE_ATK_OBJECT, MaiAtkObject))
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#define MAI_ATK_OBJECT_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass), MAI_TYPE_ATK_OBJECT, MaiAtkObjectClass))
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#define IS_MAI_OBJECT(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj), MAI_TYPE_ATK_OBJECT))
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#define IS_MAI_OBJECT_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass), MAI_TYPE_ATK_OBJECT))
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#define MAI_ATK_OBJECT_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS((obj), MAI_TYPE_ATK_OBJECT, MaiAtkObjectClass))
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GType mai_atk_object_get_type(void);
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GType mai_util_get_type();
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// This is a pointer to the atk_table_cell_get_type function if we are using
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// a version of atk that defines that.
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extern "C" GType (*gAtkTableCellGetTypeFunc)();
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mozilla::a11y::AccessibleWrap* GetAccessibleWrap(AtkObject* aAtkObj);
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mozilla::a11y::RemoteAccessible* GetProxy(AtkObject* aAtkObj);
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mozilla::a11y::Accessible* GetInternalObj(AtkObject* aObj);
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AtkObject* GetWrapperFor(mozilla::a11y::Accessible* acc);
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extern int atkMajorVersion, atkMinorVersion, atkMicroVersion;
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/**
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* Return true if the loaded version of libatk-1.0.so is at least
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* aMajor.aMinor.aMicro.
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*/
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static inline bool IsAtkVersionAtLeast(int aMajor, int aMinor, int aMicro = 0) {
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return aMajor < atkMajorVersion ||
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(aMajor == atkMajorVersion &&
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(aMinor < atkMinorVersion ||
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(aMinor == atkMinorVersion && aMicro <= atkMicroVersion)));
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}
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/**
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* This MaiAtkObject is a thin wrapper, in the MAI namespace, for AtkObject
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*/
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struct MaiAtkObject {
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AtkObject parent;
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/*
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* The AccessibleWrap whose properties and features are exported
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* via this object instance.
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*/
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mozilla::a11y::Accessible* acc;
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/*
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* Get the AtkHyperlink for this atk object.
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*/
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AtkHyperlink* GetAtkHyperlink();
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/*
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* Shutdown this AtkObject.
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*/
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void Shutdown();
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/*
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* Notify atk of a state change on this AtkObject.
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*/
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void FireStateChangeEvent(uint64_t aState, bool aEnabled);
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/*
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* Notify ATK of a text change within this ATK object.
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*/
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void FireTextChangeEvent(const nsAString& aStr, int32_t aStart, uint32_t aLen,
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bool aIsInsert, bool aIsFromUser);
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/**
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* Notify ATK of a shown or hidden subtree rooted at aObject whose parent is
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* aParent
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*/
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void FireAtkShowHideEvent(AtkObject* aParent, bool aIsAdded, bool aFromUser);
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private:
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/*
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* do we have text-remove and text-insert signals if not we need to use
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* text-changed see AccessibleWrap::FireAtkTextChangedEvent() and
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* bug 619002
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*/
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enum EAvailableAtkSignals {
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eUnknown,
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eHaveNewAtkTextSignals,
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eNoNewAtkSignals
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};
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static EAvailableAtkSignals gAvailableAtkSignals;
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};
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#endif /* __NS_MAI_H__ */
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