TAlfActionCommand Class Reference
class TAlfActionCommand : public TAlfCommand |
TAlfActionCommand is a simple action that triggers an action notification.
They are reserved for notifying observers of user-initiated actions in the user interface. For example, a button control might send an action command when the user clicks on the button.
Usage:
//Candidate, interested in action notification, should implement
// MAlfActionObserver interface
class ActionCommandTest : public MAlfActionObserver
{
public:
.....
.....
.....
void HandleAction( const TAlfActionCommand& aActionCommand );
};
// From MAlfActionObserver
void ActionCommandTest::HandleAction( const TAlfActionCommand& aActionCommand )
{
//Perform required action on notification
}
-------------------------------------------------------------------------------
//Observer registrartion
ActionCommandTest* testClass = new ActionCommandTest();
//Create command
TAlfActionCommand command( 1 );
//Register test command as observer to environment
iEnv->AddActionObserverL( testClass );
//Send command
iEnv->Send( command, 1 );
//Cleanup
iEnv->RemoveActionObserver( testClass );
delete testClass;
MAlfActionObserver CAlfEnv::AddActionObserverL() CAlfEnv::RemoveActionObserver()
Constructor & Destructor Documentation
TAlfActionCommand(TInt)
IMPORT_C | TAlfActionCommand | ( | TInt | aId | ) | |
Constructs a new action command.
Parameters
TInt aId | Identifier of the action. |
Member Functions Documentation
CommandExtension(const TUid &, TAny **)
IMPORT_C void | CommandExtension | ( | const TUid & | aExtensionUid, |
| TAny ** | aExtensionParams |
| ) | [protected, virtual] |
Parameters
const TUid & aExtensionUid | |
TAny ** aExtensionParams | |
ExecuteL(CAlfEnv &)
IMPORT_C void | ExecuteL | ( | CAlfEnv & | aEnv | ) | const [virtual] |
Parameters
CAlfEnv & aEnv | The environment in which the command is being executed. |
Id()
Determines the action identifier of the command.
Size()
IMPORT_C TInt | Size | ( | ) | const [virtual] |
Returns the size of the command.
Member Data Documentation
Copyright ©2010 Nokia Corporation and/or its subsidiary(-ies).
All rights
reserved. Unless otherwise stated, these materials are provided under the terms of the Eclipse Public License
v1.0.