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137 lines
4.1 KiB
C++
137 lines
4.1 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 mozilla_a11y_Platform_h
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#define mozilla_a11y_Platform_h
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#include <stdint.h>
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#include "nsStringFwd.h"
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#include "Units.h"
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#if defined(ANDROID)
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# include "nsTArray.h"
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# include "nsRect.h"
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#endif
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#ifdef MOZ_WIDGET_COCOA
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# include "mozilla/a11y/Role.h"
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# include "nsTArray.h"
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#endif
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namespace mozilla {
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namespace a11y {
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class Accessible;
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class RemoteAccessible;
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enum EPlatformDisabledState {
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ePlatformIsForceEnabled = -1,
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ePlatformIsEnabled = 0,
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ePlatformIsDisabled = 1
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};
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/**
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* Return the platform disabled state.
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*/
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EPlatformDisabledState PlatformDisabledState();
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#ifdef MOZ_ACCESSIBILITY_ATK
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/**
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* Perform initialization that should be done as soon as possible, in order
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* to minimize startup time.
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* XXX: this function and the next defined in ApplicationAccessibleWrap.cpp
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*/
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void PreInit();
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#endif
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#if defined(MOZ_ACCESSIBILITY_ATK) || defined(XP_DARWIN)
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/**
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* Is platform accessibility enabled.
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* Only used on Linux, MacOS and iOS for now.
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*/
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bool ShouldA11yBeEnabled();
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#endif
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#if defined(XP_WIN)
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/*
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* Name of platform service that instantiated accessibility
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*/
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void SetInstantiator(const uint32_t aInstantiatorPid);
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bool GetInstantiator(nsIFile** aOutInstantiator);
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#endif
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/**
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* Called to initialize platform specific accessibility support.
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* Note this is called after internal accessibility support is initialized.
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*/
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void PlatformInit();
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/**
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* Shutdown platform accessibility.
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* Note this is called before internal accessibility support is shutdown.
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*/
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void PlatformShutdown();
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/**
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* called when a new RemoteAccessible is created, so the platform may setup a
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* wrapper for it, or take other action.
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*/
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void ProxyCreated(RemoteAccessible* aProxy);
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/**
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* Called just before a RemoteAccessible is destroyed so its wrapper can be
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* disposed of and other action taken.
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*/
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void ProxyDestroyed(RemoteAccessible*);
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/**
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* Called when an event is fired on an Accessible so that platforms may fire
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* events if appropriate.
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*/
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void PlatformEvent(Accessible* aTarget, uint32_t aEventType);
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void PlatformStateChangeEvent(Accessible* aTarget, uint64_t aState,
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bool aEnabled);
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void PlatformFocusEvent(Accessible* aTarget,
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const LayoutDeviceIntRect& aCaretRect);
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void PlatformCaretMoveEvent(Accessible* aTarget, int32_t aOffset,
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bool aIsSelectionCollapsed, int32_t aGranularity,
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const LayoutDeviceIntRect& aCaretRect,
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bool aFromUser);
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void PlatformTextChangeEvent(Accessible* aTarget, const nsAString& aStr,
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int32_t aStart, uint32_t aLen, bool aIsInsert,
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bool aFromUser);
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void PlatformShowHideEvent(Accessible* aTarget, Accessible* aParent,
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bool aInsert, bool aFromUser);
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void PlatformSelectionEvent(Accessible* aTarget, Accessible* aWidget,
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uint32_t aType);
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#if defined(ANDROID)
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void PlatformScrollingEvent(Accessible* aTarget, uint32_t aEventType,
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uint32_t aScrollX, uint32_t aScrollY,
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uint32_t aMaxScrollX, uint32_t aMaxScrollY);
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void PlatformAnnouncementEvent(Accessible* aTarget,
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const nsAString& aAnnouncement,
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uint16_t aPriority);
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bool LocalizeString(const nsAString& aToken, nsAString& aLocalized);
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#endif
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#ifdef MOZ_WIDGET_COCOA
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class TextRange;
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void PlatformTextSelectionChangeEvent(Accessible* aTarget,
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const nsTArray<TextRange>& aSelection);
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void PlatformRoleChangedEvent(Accessible* aTarget, const a11y::role& aRole,
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uint8_t aRoleMapEntryIndex);
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#endif
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} // namespace a11y
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} // namespace mozilla
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#endif // mozilla_a11y_Platform_h
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