/* -*- 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 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