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/* -*- 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 */
#ifndef mozilla_a11y_Platform_h
#define mozilla_a11y_Platform_h
#include <stdint.h>
#include "nsStringFwd.h"
#if defined(ANDROID)
# include "nsTArray.h"
# include "nsRect.h"
# include "mozilla/a11y/Role.h"
#if defined(XP_WIN)
# include "Units.h"
namespace mozilla {
namespace a11y {
class RemoteAccessible;
enum EPlatformDisabledState {
ePlatformIsForceEnabled = -1,
ePlatformIsEnabled = 0,
ePlatformIsDisabled = 1
* Return the platform disabled state.
EPlatformDisabledState PlatformDisabledState();
* 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();
#if defined(MOZ_ACCESSIBILITY_ATK) || defined(XP_MACOSX)
* Is platform accessibility enabled.
* Only used on linux with atk and MacOS for now.
bool ShouldA11yBeEnabled();
#if defined(XP_WIN)
* Do we have AccessibleHandler.dll registered.
bool IsHandlerRegistered();
* Name of platform service that instantiated accessibility
void SetInstantiator(const uint32_t aInstantiatorPid);
bool GetInstantiator(nsIFile** aOutInstantiator);
* 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 RemoteAccessible is created, so the platform may setup a
* wrapper for it, or take other action.
void ProxyCreated(RemoteAccessible* aProxy);
* Called just before a RemoteAccessible is destroyed so its wrapper can be
* disposed of and other action taken.
void ProxyDestroyed(RemoteAccessible*);
* Callied when an event is fired on a proxied accessible.
void ProxyEvent(RemoteAccessible* aTarget, uint32_t aEventType);
void ProxyStateChangeEvent(RemoteAccessible* aTarget, uint64_t aState,
bool aEnabled);
#if defined(XP_WIN)
void ProxyFocusEvent(RemoteAccessible* aTarget,
const LayoutDeviceIntRect& aCaretRect);
void ProxyCaretMoveEvent(RemoteAccessible* aTarget,
const LayoutDeviceIntRect& aCaretRect);
void ProxyCaretMoveEvent(RemoteAccessible* aTarget, int32_t aOffset,
bool aIsSelectionCollapsed);
void ProxyTextChangeEvent(RemoteAccessible* aTarget, const nsString& aStr,
int32_t aStart, uint32_t aLen, bool aIsInsert,
bool aFromUser);
void ProxyShowHideEvent(RemoteAccessible* aTarget, RemoteAccessible* aParent,
bool aInsert, bool aFromUser);
void ProxySelectionEvent(RemoteAccessible* aTarget, RemoteAccessible* aWidget,
uint32_t aType);
#if defined(ANDROID)
void ProxyVirtualCursorChangeEvent(RemoteAccessible* aTarget,
RemoteAccessible* aOldPosition,
int32_t aOldStartOffset,
int32_t aOldEndOffset,
RemoteAccessible* aNewPosition,
int32_t aNewStartOffset,
int32_t aNewEndOffset, int16_t aReason,
int16_t aBoundaryType, bool aFromUser);
void ProxyScrollingEvent(RemoteAccessible* aTarget, uint32_t aEventType,
uint32_t aScrollX, uint32_t aScrollY,
uint32_t aMaxScrollX, uint32_t aMaxScrollY);
void ProxyAnnouncementEvent(RemoteAccessible* aTarget,
const nsString& aAnnouncement, uint16_t aPriority);
class BatchData;
void ProxyBatch(RemoteAccessible* aDocument, const uint64_t aBatchType,
const nsTArray<RemoteAccessible*>& aAccessibles,
const nsTArray<BatchData>& aData);
bool LocalizeString(
const char* aToken, nsAString& aLocalized,
const nsTArray<nsString>& aFormatString = nsTArray<nsString>());
class TextRangeData;
void ProxyTextSelectionChangeEvent(RemoteAccessible* aTarget,
const nsTArray<TextRangeData>& aSelection);
void ProxyRoleChangedEvent(RemoteAccessible* aTarget, const a11y::role& aRole);
} // namespace a11y
} // namespace mozilla
#endif // mozilla_a11y_Platform_h