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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 mozilla_a11y_Platform_h
#define mozilla_a11y_Platform_h
#include <stdint.h>
class nsString;
namespace mozilla {
namespace a11y {
class ProxyAccessible;
enum EPlatformDisabledState {
ePlatformIsForceEnabled = -1,
ePlatformIsEnabled = 0,
ePlatformIsDisabled = 1
};
/**
* Return the platform disabled state.
*/
EPlatformDisabledState PlatformDisabledState();
#ifdef MOZ_ACCESSIBILITY_ATK
/**
* Perform initialization that should be done as soon as possible, in order
* to minimize startup time.
* XXX: this function and the next defined in ApplicationAccessibleWrap.cpp
*/
void PreInit();
#endif
#if defined(MOZ_ACCESSIBILITY_ATK) || defined(XP_MACOSX)
/**
* Is platform accessibility enabled.
* Only used on linux with atk and MacOS for now.
*/
bool ShouldA11yBeEnabled();
#endif
/**
* Called to initialize platform specific accessibility support.
* Note this is called after internal accessibility support is initialized.
*/
void PlatformInit();
/**
* Shutdown platform accessibility.
* Note this is called before internal accessibility support is shutdown.
*/
void PlatformShutdown();
/**
* called when a new ProxyAccessible is created, so the platform may setup a
* wrapper for it, or take other action.
*/
void ProxyCreated(ProxyAccessible* aProxy, uint32_t aInterfaces);
/**
* Called just before a ProxyAccessible is destroyed so its wrapper can be
* disposed of and other action taken.
*/
void ProxyDestroyed(ProxyAccessible*);
/**
* Callied when an event is fired on a proxied accessible.
*/
void ProxyEvent(ProxyAccessible* aTarget, uint32_t aEventType);
void ProxyStateChangeEvent(ProxyAccessible* aTarget, uint64_t aState,
bool aEnabled);
void ProxyCaretMoveEvent(ProxyAccessible* aTarget, int32_t aOffset);
void ProxyTextChangeEvent(ProxyAccessible* aTarget, const nsString& aStr,
int32_t aStart, uint32_t aLen, bool aIsInsert,
bool aFromUser);
void ProxyShowHideEvent(ProxyAccessible* aTarget, ProxyAccessible* aParent,
bool aInsert, bool aFromUser);
void ProxySelectionEvent(ProxyAccessible* aTarget, ProxyAccessible* aWidget,
uint32_t aType);
} // namespace a11y
} // namespace mozilla
#endif // mozilla_a11y_Platform_h
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