The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/accessible/src/atk/nsMaiInterfaceValue.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,108 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* vim: set ts=2 et sw=2 tw=80: */
     1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.9 +
    1.10 +#include "InterfaceInitFuncs.h"
    1.11 +
    1.12 +#include "AccessibleWrap.h"
    1.13 +#include "nsMai.h"
    1.14 +
    1.15 +#include "mozilla/FloatingPoint.h"
    1.16 +#include "mozilla/Likely.h"
    1.17 +
    1.18 +using namespace mozilla;
    1.19 +using namespace mozilla::a11y;
    1.20 +
    1.21 +extern "C" {
    1.22 +
    1.23 +static void
    1.24 +getCurrentValueCB(AtkValue *obj, GValue *value)
    1.25 +{
    1.26 +  AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(obj));
    1.27 +  if (!accWrap)
    1.28 +    return;
    1.29 +
    1.30 +  memset (value,  0, sizeof (GValue));
    1.31 +  double accValue = accWrap->CurValue();
    1.32 +  if (IsNaN(accValue))
    1.33 +    return;
    1.34 +
    1.35 +  g_value_init (value, G_TYPE_DOUBLE);
    1.36 +  g_value_set_double (value, accValue);
    1.37 +}
    1.38 +
    1.39 +static void
    1.40 +getMaximumValueCB(AtkValue *obj, GValue *value)
    1.41 +{
    1.42 +  AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(obj));
    1.43 +  if (!accWrap)
    1.44 +    return;
    1.45 +
    1.46 +  memset(value,  0, sizeof (GValue));
    1.47 +  double accValue = accWrap->MaxValue();
    1.48 +  if (IsNaN(accValue))
    1.49 +    return;
    1.50 +
    1.51 +  g_value_init(value, G_TYPE_DOUBLE);
    1.52 +  g_value_set_double(value, accValue);
    1.53 +}
    1.54 +
    1.55 +static void
    1.56 +getMinimumValueCB(AtkValue *obj, GValue *value)
    1.57 +{
    1.58 +  AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(obj));
    1.59 +  if (!accWrap)
    1.60 +    return;
    1.61 +
    1.62 +  memset(value,  0, sizeof (GValue));
    1.63 +  double accValue = accWrap->MinValue();
    1.64 +  if (IsNaN(accValue))
    1.65 +    return;
    1.66 +
    1.67 +  g_value_init(value, G_TYPE_DOUBLE);
    1.68 +  g_value_set_double(value, accValue);
    1.69 +}
    1.70 +
    1.71 +static void
    1.72 +getMinimumIncrementCB(AtkValue *obj, GValue *minimumIncrement)
    1.73 +{
    1.74 +  AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(obj));
    1.75 +  if (!accWrap)
    1.76 +    return;
    1.77 +
    1.78 +  memset(minimumIncrement,  0, sizeof (GValue));
    1.79 +  double accValue = accWrap->Step();
    1.80 +  if (IsNaN(accValue))
    1.81 +    accValue = 0; // zero if the minimum increment is undefined
    1.82 +
    1.83 +  g_value_init(minimumIncrement, G_TYPE_DOUBLE);
    1.84 +  g_value_set_double(minimumIncrement, accValue);
    1.85 +}
    1.86 +
    1.87 +static gboolean
    1.88 +setCurrentValueCB(AtkValue *obj, const GValue *value)
    1.89 +{
    1.90 +  AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(obj));
    1.91 +  if (!accWrap)
    1.92 +    return FALSE;
    1.93 +
    1.94 +  double accValue =g_value_get_double(value);
    1.95 +  return accWrap->SetCurValue(accValue);
    1.96 +}
    1.97 +}
    1.98 +
    1.99 +void
   1.100 +valueInterfaceInitCB(AtkValueIface* aIface)
   1.101 +{
   1.102 +  NS_ASSERTION(aIface, "Invalid aIface");
   1.103 +  if (MOZ_UNLIKELY(!aIface))
   1.104 +    return;
   1.105 +
   1.106 +  aIface->get_current_value = getCurrentValueCB;
   1.107 +  aIface->get_maximum_value = getMaximumValueCB;
   1.108 +  aIface->get_minimum_value = getMinimumValueCB;
   1.109 +  aIface->get_minimum_increment = getMinimumIncrementCB;
   1.110 +  aIface->set_current_value = setCurrentValueCB;
   1.111 +}