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Diffstat (limited to '')
-rw-r--r-- | accessible/atk/nsMai.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/accessible/atk/nsMai.h b/accessible/atk/nsMai.h new file mode 100644 index 0000000000..175a3c64ff --- /dev/null +++ b/accessible/atk/nsMai.h @@ -0,0 +1,112 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef __NS_MAI_H__ +#define __NS_MAI_H__ + +#include <atk/atk.h> +#include <glib.h> +#include <glib-object.h> + +#include "AccessibleWrap.h" + +namespace mozilla { +namespace a11y { +class RemoteAccessible; +class Accessible; +} // namespace a11y +} // namespace mozilla + +#define MAI_TYPE_ATK_OBJECT (mai_atk_object_get_type()) +#define MAI_ATK_OBJECT(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST((obj), MAI_TYPE_ATK_OBJECT, MaiAtkObject)) +#define MAI_ATK_OBJECT_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST((klass), MAI_TYPE_ATK_OBJECT, MaiAtkObjectClass)) +#define IS_MAI_OBJECT(obj) \ + (G_TYPE_CHECK_INSTANCE_TYPE((obj), MAI_TYPE_ATK_OBJECT)) +#define IS_MAI_OBJECT_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_TYPE((klass), MAI_TYPE_ATK_OBJECT)) +#define MAI_ATK_OBJECT_GET_CLASS(obj) \ + (G_TYPE_INSTANCE_GET_CLASS((obj), MAI_TYPE_ATK_OBJECT, MaiAtkObjectClass)) +GType mai_atk_object_get_type(void); +GType mai_util_get_type(); + +// This is a pointer to the atk_table_cell_get_type function if we are using +// a version of atk that defines that. +extern "C" GType (*gAtkTableCellGetTypeFunc)(); + +mozilla::a11y::AccessibleWrap* GetAccessibleWrap(AtkObject* aAtkObj); +mozilla::a11y::RemoteAccessible* GetProxy(AtkObject* aAtkObj); +mozilla::a11y::Accessible* GetInternalObj(AtkObject* aObj); +AtkObject* GetWrapperFor(mozilla::a11y::Accessible* acc); + +extern int atkMajorVersion, atkMinorVersion, atkMicroVersion; + +/** + * Return true if the loaded version of libatk-1.0.so is at least + * aMajor.aMinor.aMicro. + */ +static inline bool IsAtkVersionAtLeast(int aMajor, int aMinor, int aMicro = 0) { + return aMajor < atkMajorVersion || + (aMajor == atkMajorVersion && + (aMinor < atkMinorVersion || + (aMinor == atkMinorVersion && aMicro <= atkMicroVersion))); +} + +/** + * This MaiAtkObject is a thin wrapper, in the MAI namespace, for AtkObject + */ +struct MaiAtkObject { + AtkObject parent; + /* + * The AccessibleWrap whose properties and features are exported + * via this object instance. + */ + mozilla::a11y::Accessible* acc; + + /* + * Get the AtkHyperlink for this atk object. + */ + AtkHyperlink* GetAtkHyperlink(); + + /* + * Shutdown this AtkObject. + */ + void Shutdown(); + + /* + * Notify atk of a state change on this AtkObject. + */ + void FireStateChangeEvent(uint64_t aState, bool aEnabled); + + /* + * Notify ATK of a text change within this ATK object. + */ + void FireTextChangeEvent(const nsAString& aStr, int32_t aStart, uint32_t aLen, + bool aIsInsert, bool aIsFromUser); + + /** + * Notify ATK of a shown or hidden subtree rooted at aObject whose parent is + * aParent + */ + void FireAtkShowHideEvent(AtkObject* aParent, bool aIsAdded, bool aFromUser); + + private: + /* + * do we have text-remove and text-insert signals if not we need to use + * text-changed see AccessibleWrap::FireAtkTextChangedEvent() and + * bug 619002 + */ + enum EAvailableAtkSignals { + eUnknown, + eHaveNewAtkTextSignals, + eNoNewAtkSignals + }; + + static EAvailableAtkSignals gAvailableAtkSignals; +}; + +#endif /* __NS_MAI_H__ */ |