gecko-dev/accessible/xpcom/xpcAccessibleValue.cpp
2017-02-01 12:37:13 -08:00

130 lines
2.7 KiB
C++

/* -*- 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/. */
#include "xpcAccessibleGeneric.h"
#include "Accessible.h"
using namespace mozilla;
using namespace mozilla::a11y;
NS_IMETHODIMP
xpcAccessibleValue::GetMaximumValue(double* aValue)
{
NS_ENSURE_ARG_POINTER(aValue);
*aValue = 0;
if (Intl().IsNull())
return NS_ERROR_FAILURE;
if (Intl().IsAccessible() && Intl().AsAccessible()->IsDefunct())
return NS_ERROR_FAILURE;
double value;
if (Intl().IsAccessible()) {
value = Intl().AsAccessible()->MaxValue();
} else {
value = Intl().AsProxy()->MaxValue();
}
if (!IsNaN(value))
*aValue = value;
return NS_OK;
}
NS_IMETHODIMP
xpcAccessibleValue::GetMinimumValue(double* aValue)
{
NS_ENSURE_ARG_POINTER(aValue);
*aValue = 0;
if (Intl().IsNull())
return NS_ERROR_FAILURE;
if (Intl().IsAccessible() && Intl().AsAccessible()->IsDefunct())
return NS_ERROR_FAILURE;
double value;
if (Intl().IsAccessible()) {
value = Intl().AsAccessible()->MinValue();
} else {
value = Intl().AsProxy()->MinValue();
}
if (!IsNaN(value))
*aValue = value;
return NS_OK;
}
NS_IMETHODIMP
xpcAccessibleValue::GetCurrentValue(double* aValue)
{
NS_ENSURE_ARG_POINTER(aValue);
*aValue = 0;
if (Intl().IsNull())
return NS_ERROR_FAILURE;
if (Intl().IsAccessible() && Intl().AsAccessible()->IsDefunct())
return NS_ERROR_FAILURE;
double value;
if (Intl().IsAccessible()) {
value = Intl().AsAccessible()->CurValue();
} else {
value = Intl().AsProxy()->CurValue();
}
if (!IsNaN(value))
*aValue = value;
return NS_OK;
}
NS_IMETHODIMP
xpcAccessibleValue::SetCurrentValue(double aValue)
{
if (Intl().IsNull())
return NS_ERROR_FAILURE;
if (Intl().IsAccessible() && Intl().AsAccessible()->IsDefunct())
return NS_ERROR_FAILURE;
if (Intl().IsAccessible()) {
Intl().AsAccessible()->SetCurValue(aValue);
} else {
Intl().AsProxy()->SetCurValue(aValue);
}
return NS_OK;
}
NS_IMETHODIMP
xpcAccessibleValue::GetMinimumIncrement(double* aValue)
{
NS_ENSURE_ARG_POINTER(aValue);
*aValue = 0;
if (Intl().IsNull())
return NS_ERROR_FAILURE;
if (Intl().IsAccessible() && Intl().AsAccessible()->IsDefunct())
return NS_ERROR_FAILURE;
double value;
if (Intl().IsAccessible()) {
value = Intl().AsAccessible()->Step();
} else {
value = Intl().AsProxy()->Step();
}
if (!IsNaN(value))
*aValue = value;
return NS_OK;
}