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/* -*- 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 "InterfaceInitFuncs.h"
#include "AccessibleWrap.h"
#include "nsMai.h"
#include "ProxyAccessible.h"
#include "mozilla/FloatingPoint.h"
#include "mozilla/Likely.h"
using namespace mozilla;
using namespace mozilla::a11y;
extern "C" {
static void
getCurrentValueCB(AtkValue *obj, GValue *value)
{
ProxyAccessible* proxy = nullptr;
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(obj));
if (!accWrap) {
proxy = GetProxy(ATK_OBJECT(obj));
if (!proxy) {
return;
}
}
memset (value, 0, sizeof (GValue));
double accValue = accWrap ? accWrap->CurValue() : proxy->CurValue();
if (IsNaN(accValue))
return;
g_value_init (value, G_TYPE_DOUBLE);
g_value_set_double (value, accValue);
}
static void
getMaximumValueCB(AtkValue *obj, GValue *value)
{
ProxyAccessible* proxy = nullptr;
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(obj));
if (!accWrap) {
proxy = GetProxy(ATK_OBJECT(obj));
if (!proxy) {
return;
}
}
memset(value, 0, sizeof (GValue));
double accValue = accWrap ? accWrap->MaxValue() : proxy->MaxValue();
if (IsNaN(accValue))
return;
g_value_init(value, G_TYPE_DOUBLE);
g_value_set_double(value, accValue);
}
static void
getMinimumValueCB(AtkValue *obj, GValue *value)
{
ProxyAccessible* proxy = nullptr;
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(obj));
if (!accWrap) {
proxy = GetProxy(ATK_OBJECT(obj));
if (!proxy) {
return;
}
}
memset(value, 0, sizeof (GValue));
double accValue = accWrap ? accWrap->MinValue() : proxy->MinValue();
if (IsNaN(accValue))
return;
g_value_init(value, G_TYPE_DOUBLE);
g_value_set_double(value, accValue);
}
static void
getMinimumIncrementCB(AtkValue *obj, GValue *minimumIncrement)
{
ProxyAccessible* proxy = nullptr;
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(obj));
if (!accWrap) {
proxy = GetProxy(ATK_OBJECT(obj));
if (!proxy) {
return;
}
}
memset(minimumIncrement, 0, sizeof (GValue));
double accValue = accWrap ? accWrap->Step() : proxy->Step();
if (IsNaN(accValue))
accValue = 0; // zero if the minimum increment is undefined
g_value_init(minimumIncrement, G_TYPE_DOUBLE);
g_value_set_double(minimumIncrement, accValue);
}
static gboolean
setCurrentValueCB(AtkValue *obj, const GValue *value)
{
ProxyAccessible* proxy = nullptr;
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(obj));
if (!accWrap) {
proxy = GetProxy(ATK_OBJECT(obj));
if (!proxy) {
return FALSE;
}
}
double accValue =g_value_get_double(value);
return accWrap ? accWrap->SetCurValue(accValue) : proxy->SetCurValue(accValue);
}
}
void
valueInterfaceInitCB(AtkValueIface* aIface)
{
NS_ASSERTION(aIface, "Invalid aIface");
if (MOZ_UNLIKELY(!aIface))
return;
aIface->get_current_value = getCurrentValueCB;
aIface->get_maximum_value = getMaximumValueCB;
aIface->get_minimum_value = getMinimumValueCB;
aIface->get_minimum_increment = getMinimumIncrementCB;
aIface->set_current_value = setCurrentValueCB;
}
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