void CommandService::UnregisterElement(const SmartPointer<IElementReference>& elementReference)
{
if (commandCallbacks.contains(elementReference->GetCommandId()))
{
QList<IElementReference::Pointer>& parameterizedCommands = commandCallbacks[elementReference->GetCommandId()];
parameterizedCommands.removeAll(elementReference);
if (parameterizedCommands.isEmpty())
{
commandCallbacks.remove(elementReference->GetCommandId());
}
}
}
void CommandService::RegisterElement(const SmartPointer<IElementReference>& elementReference)
{
QList<IElementReference::Pointer>& parameterizedCommands = commandCallbacks[elementReference->GetCommandId()];
parameterizedCommands.push_back(elementReference);
// If the active handler wants to update the callback, it can do
// so now
Command::Pointer command = GetCommand(elementReference->GetCommandId());
if (command->IsDefined())
{
if (IElementUpdater::Pointer updater = command->GetHandler().Cast<IElementUpdater>())
{
updater->UpdateElement(elementReference->GetElement().GetPointer(),
elementReference->GetParameters());
}
}
}
SmartPointer<IHandlerActivation> HandlerService::ActivateHandler(
const SmartPointer<IHandlerActivation>& childActivation)
{
const QString commandId = childActivation->GetCommandId();
const IHandler::Pointer handler = childActivation->GetHandler();
const Expression::Pointer expression = childActivation->GetExpression();
const int depth = childActivation->GetDepth() + 1;
const IHandlerActivation::Pointer localActivation(
new HandlerActivation(commandId, handler, expression, depth, this));
handlerAuthority->ActivateHandler(localActivation);
return localActivation;
}
SmartPointer<IHandlerActivation> SlaveHandlerService::ActivateHandler(const SmartPointer<IHandlerActivation>& childActivation)
{
const QString commandId = childActivation->GetCommandId();
const IHandler::Pointer handler = childActivation->GetHandler();
const Expression::Pointer childExpression = childActivation->GetExpression();
Expression::Pointer expression = defaultExpression;
if (childExpression.IsNotNull() && defaultExpression.IsNotNull())
{
const AndExpression::Pointer andExpression(new AndExpression());
andExpression->Add(childExpression);
andExpression->Add(defaultExpression);
expression = andExpression;
}
else if (childExpression.IsNotNull())
{
expression = childExpression;
}
const int depth = childActivation->GetDepth() + 1;
const IHandlerActivation::Pointer localActivation(
new HandlerActivation(commandId, handler, expression, depth, this));
return DoActivation(localActivation);
}
