// <rdar://8202424>
IOReturn IOAudioSelectorControl::addAvailableSelection(SInt32 selectionValue, OSString *selectionDescription, const char* tagName, OSObject* tag)
{
OSArray *newSelections;
OSArray *oldAvailableSelections;
IOReturn result = kIOReturnSuccess;
oldAvailableSelections = availableSelections;
newSelections = OSArray::withArray(availableSelections);
if (!newSelections)
return kIOReturnNoMemory;
if (selectionDescription == NULL) {
result = kIOReturnBadArgument;
} else {
if (valueExists(selectionValue)) {
result = kIOReturnError;
} else {
OSDictionary *newSelection;
newSelection = OSDictionary::withCapacity(2);
if (newSelection) {
OSNumber *number;
number = OSNumber::withNumber(selectionValue, sizeof(SInt32)*8);
if (number) {
newSelection->setObject(kIOAudioSelectorControlSelectionValueKey, number);
newSelection->setObject(kIOAudioSelectorControlSelectionDescriptionKey, selectionDescription);
newSelections->setObject(newSelection);
number->release();
} else {
result = kIOReturnError;
}
if ( tagName && tag ) {
newSelection->setObject(tagName, tag);
}
availableSelections = newSelections;
setProperty(kIOAudioSelectorControlAvailableSelectionsKey, availableSelections);
oldAvailableSelections->release();
newSelection->release();
} else {
result = kIOReturnError;
}
}
}
if (kIOReturnSuccess == result) {
sendChangeNotification(kIOAudioControlRangeChangeNotification);
}
return result;
}
IOReturn IOAudioSelectorControl::replaceAvailableSelection(SInt32 selectionValue, OSString *selectionDescription)
{
OSCollectionIterator *iterator;
OSArray *newSelections;
OSArray *oldAvailableSelections;
IOReturn result = kIOReturnSuccess;
assert(availableSelections);
oldAvailableSelections = availableSelections;
newSelections = OSArray::withArray(availableSelections);
if (!newSelections)
return kIOReturnNoMemory;
iterator = OSCollectionIterator::withCollection(newSelections);
if (iterator) {
OSDictionary * selection;
UInt32 index;
index = 0;
while ( (selection = (OSDictionary *)iterator->getNextObject() )) {
OSNumber * sValue;
sValue = (OSNumber *)selection->getObject(kIOAudioSelectorControlSelectionValueKey);
if (sValue && ((SInt32)sValue->unsigned32BitValue() == selectionValue)) {
// Replace the selected dictionary in the array
newSelections->replaceObject(index, selectionDescription);
result = kIOReturnSuccess;
break;
}
index++;
}
availableSelections = newSelections;
setProperty(kIOAudioSelectorControlAvailableSelectionsKey, availableSelections);
oldAvailableSelections->release();
iterator->release();
}
if (kIOReturnSuccess == result) {
sendChangeNotification(kIOAudioControlRangeChangeNotification);
}
return result;
}
void IOAudioControlUserClient::sendValueChangeNotification()
{
return sendChangeNotification(kIOAudioControlValueChangeNotification);
}
void IOAudioLevelControl::setMaxDB(IOFixed newMaxDB)
{
setProperty(kIOAudioLevelControlMaxDBKey, newMaxDB, sizeof(IOFixed)*8);
sendChangeNotification(kIOAudioControlRangeChangeNotification);
}
void IOAudioLevelControl::setMaxValue(SInt32 newMaxValue)
{
maxValue = newMaxValue;
setProperty(kIOAudioLevelControlMaxValueKey, newMaxValue, sizeof(SInt32)*8);
sendChangeNotification(kIOAudioControlRangeChangeNotification);
}
