accessible/atk/nsMaiInterfaceAction.cpp

   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 #include "InterfaceInitFuncs.h"
   8
   9 #include "LocalAccessible-inl.h"
  10 #include "nsMai.h"
  11 #include "mozilla/Likely.h"
  12 #include "nsAccessibilityService.h"
  13 #include "RemoteAccessible.h"
  14 #include "nsString.h"
  15
  16 using namespace mozilla;
  17 using namespace mozilla::a11y;
  18
  19 extern "C" {
  20
  21 static gboolean doActionCB(AtkAction* aAction, gint aActionIndex) {
  22   AtkObject* atkObject = ATK_OBJECT(aAction);
  23   if (Accessible* acc = GetInternalObj(atkObject)) {
  24     return acc->DoAction(aActionIndex);
  25   }
  26
  27   return false;
  28 }
  29
  30 static gint getActionCountCB(AtkAction* aAction) {
  31   AtkObject* atkObject = ATK_OBJECT(aAction);
  32   if (Accessible* acc = GetInternalObj(atkObject)) {
  33     return acc->ActionCount();
  34   }
  35
  36   return 0;
  37 }
  38
  39 static const gchar* getActionDescriptionCB(AtkAction* aAction,
  40                                            gint aActionIndex) {
  41   AtkObject* atkObject = ATK_OBJECT(aAction);
  42   nsAutoString description;
  43   if (Accessible* acc = GetInternalObj(atkObject)) {
  44     acc->ActionDescriptionAt(aActionIndex, description);
  45     return AccessibleWrap::ReturnString(description);
  46   }
  47
  48   return nullptr;
  49 }
  50
  51 static const gchar* getActionNameCB(AtkAction* aAction, gint aActionIndex) {
  52   AtkObject* atkObject = ATK_OBJECT(aAction);
  53   nsAutoString autoStr;
  54   if (Accessible* acc = GetInternalObj(atkObject)) {
  55     acc->ActionNameAt(aActionIndex, autoStr);
  56     return AccessibleWrap::ReturnString(autoStr);
  57   }
  58
  59   return nullptr;
  60 }
  61
  62 static const gchar* getKeyBindingCB(AtkAction* aAction, gint aActionIndex) {
  63   Accessible* acc = GetInternalObj(ATK_OBJECT(aAction));
  64   if (!acc) {
  65     return nullptr;
  66   }
  67   nsAutoString keyBindingsStr;
  68   AccessibleWrap::GetKeyBinding(acc, keyBindingsStr);
  69
  70   return AccessibleWrap::ReturnString(keyBindingsStr);
  71 }
  72 }
  73
  74 void actionInterfaceInitCB(AtkActionIface* aIface) {
  75   NS_ASSERTION(aIface, "Invalid aIface");
  76   if (MOZ_UNLIKELY(!aIface)) return;
  77
  78   aIface->do_action = doActionCB;
  79   aIface->get_n_actions = getActionCountCB;
  80   aIface->get_description = getActionDescriptionCB;
  81   aIface->get_keybinding = getKeyBindingCB;
  82   aIface->get_name = getActionNameCB;
  83 }