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());
}
}
}
void CommandService::RefreshElements(const QString& commandId,
const QHash<QString, Object::Pointer>& filter)
{
Command::Pointer cmd = GetCommand(commandId);
if (!cmd->IsDefined() || !(cmd->GetHandler().Cast<IElementUpdater>()))
{
return;
}
IElementUpdater::Pointer updater = cmd->GetHandler().Cast<IElementUpdater>();
if (commandCallbacks.isEmpty())
{
return;
}
if(!commandCallbacks.contains(commandId))
{
return;
}
foreach (IElementReference::Pointer callbackRef, commandCallbacks[commandId])
{
struct _SafeRunnable : public ISafeRunnable
{
IElementUpdater* updater;
IElementReference* callbackRef;
_SafeRunnable(IElementUpdater* updater, IElementReference* callbackRef)
: updater(updater), callbackRef(callbackRef)
{}
void HandleException(const std::exception& exc)
{
WorkbenchPlugin::Log(QString("Failed to update callback: ") +
callbackRef->GetCommandId() + exc.what());
}
void Run()
{
updater->UpdateElement(callbackRef->GetElement().GetPointer(), callbackRef->GetParameters());
}
};
QHash<QString,Object::Pointer> parms = callbackRef->GetParameters();
ISafeRunnable::Pointer run(new _SafeRunnable(updater.GetPointer(), callbackRef.GetPointer()));
if (filter.isEmpty())
{
SafeRunner::Run(run);
}
else
{
bool match = true;
QHashIterator<QString, Object::Pointer> i(filter);
while (i.hasNext())
{
i.next();
Object::Pointer value = parms[i.key()];
if (i.value() != value)
{
match = false;
break;
}
}
if (match)
{
SafeRunner::Run(run);
}
}
}
}