accessible/base/Platform.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 namespace mozilla {
   8 namespace a11y {
   9
  10 enum EPlatformDisabledState {
  11   ePlatformIsForceEnabled = -1,
  12   ePlatformIsEnabled = 0,
  13   ePlatformIsDisabled = 1
  14 };
  15
  16 /**
  17  * Return the platform disabled state.
  18  */
  19 EPlatformDisabledState PlatformDisabledState();
  20
  21 #ifdef MOZ_ACCESSIBILITY_ATK
  22 /**
  23  * Perform initialization that should be done as soon as possible, in order
  24  * to minimize startup time.
  25  * XXX: this function and the next defined in ApplicationAccessibleWrap.cpp
  26  */
  27 void PreInit();
  28 #endif
  29
  30 #if defined(MOZ_ACCESSIBILITY_ATK) || defined(XP_MACOSX)
  31 /**
  32  * Is platform accessibility enabled.
  33  * Only used on linux with atk and MacOS for now.
  34  */
  35 bool ShouldA11yBeEnabled();
  36 #endif
  37
  38 /**
  39  * Called to initialize platform specific accessibility support.
  40  * Note this is called after internal accessibility support is initialized.
  41  */
  42 void PlatformInit();
  43
  44 /**
  45  * Shutdown platform accessibility.
  46  * Note this is called before internal accessibility support is shutdown.
  47  */
  48 void PlatformShutdown();
  49
  50 } // namespace a11y
  51 } // namespace mozilla
  52